About the Number

81312909700

81312909699 ← → 81312909701

2進数表記:1001011101110101000001000100110000100

漢数字表記:八百十三億千二百九十万九千七百

素因数分解:

2 2 × 5 2 × 11 1 × 23 1 × 41 1 × 43 1 × 1823 1

素因数の和:1955
約数の個数: 288
約数和(自身を含む): 210658516992
約数和(自身を除く): 129345607292

約数列:
[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 41, 43, 44, 46, 50, 55, 82, 86, 92, 100, 110, 115, 164, 172, 205, 215, 220, 230, 253, 275, 410, 430, 451, 460, 473, 506, 550, 575, 820, 860, 902, 943, 946, 989, 1012, 1025, 1075, 1100, 1150, 1265, 1763, 1804, 1823, 1886, 1892, 1978, 2050, 2150, 2255, 2300, 2365, 2530, 3526, 3646, 3772, 3956, 4100, 4300, 4510, 4715, 4730, 4945, 5060, 6325, 7052, 7292, 8815, 9020, 9115, 9430, 9460, 9890, 10373, 10879, 11275, 11825, 12650, 17630, 18230, 18860, 19393, 19780, 20053, 20746, 21758, 22550, 23575, 23650, 24725, 25300, 35260, 36460, 38786, 40106, 40549, 41492, 41929, 43516, 44075, 45100, 45575, 47150, 47300, 49450, 51865, 54395, 74743, 77572, 78389, 80212, 81098, 83858, 88150, 91150, 94300, 96965, 98900, 100265, 103730, 108790, 149486, 156778, 162196, 167716, 176300, 182300, 193930, 200530, 202745, 207460, 209645, 217580, 259325, 271975, 298972, 313556, 373715, 387860, 391945, 401060, 405490, 419290, 446039, 461219, 484825, 501325, 518650, 543950, 747430, 783890, 810980, 822173, 838580, 862279, 892078, 922438, 969650, 1002650, 1013725, 1037300, 1048225, 1087900, 1494860, 1567780, 1644346, 1719089, 1724558, 1784156, 1802947, 1844876, 1868575, 1939300, 1959725, 2005300, 2027450, 2096450, 2230195, 2306095, 3213949, 3288692, 3438178, 3449116, 3605894, 3737150, 3919450, 4054900, 4110865, 4192900, 4311395, 4460390, 4612190, 6427898, 6876356, 7211788, 7474300, 7838900, 8221730, 8595445, 8622790, 8920780, 9014735, 9224380, 11150975, 11530475, 12855796, 16069745, 16443460, 17190890, 17245580, 18029470, 18909979, 19832417, 20554325, 21556975, 22301950, 23060950, 32139490, 34381780, 35353439, 36058940, 37819958, 39664834, 41108650, 42977225, 43113950, 44603900, 45073675, 46121900, 64278980, 70706878, 73920827, 75639916, 79329668, 80348725, 82217300, 85954450, 86227900, 90147350, 94549895, 99162085, 141413756, 147841654, 160697450, 171908900, 176767195, 180294700, 189099790, 198324170, 295683308, 321394900, 353534390, 369604135, 378199580, 396648340, 472749475, 495810425, 707068780, 739208270, 813129097, 883835975, 945498950, 991620850, 1478416540, 1626258194, 1767671950, 1848020675, 1890997900, 1983241700, 3252516388, 3535343900, 3696041350, 4065645485, 7392082700, 8131290970, 16262581940, 20328227425, 40656454850, 81312909700]

約数ペア:
[(1, 81312909700), (2, 40656454850), (4, 20328227425), (5, 16262581940), (10, 8131290970), (11, 7392082700), (20, 4065645485), (22, 3696041350), (23, 3535343900), (25, 3252516388), (41, 1983241700), (43, 1890997900), (44, 1848020675), (46, 1767671950), (50, 1626258194), (55, 1478416540), (82, 991620850), (86, 945498950), (92, 883835975), (100, 813129097), (110, 739208270), (115, 707068780), (164, 495810425), (172, 472749475), (205, 396648340), (215, 378199580), (220, 369604135), (230, 353534390), (253, 321394900), (275, 295683308), (410, 198324170), (430, 189099790), (451, 180294700), (460, 176767195), (473, 171908900), (506, 160697450), (550, 147841654), (575, 141413756), (820, 99162085), (860, 94549895), (902, 90147350), (943, 86227900), (946, 85954450), (989, 82217300), (1012, 80348725), (1025, 79329668), (1075, 75639916), (1100, 73920827), (1150, 70706878), (1265, 64278980), (1763, 46121900), (1804, 45073675), (1823, 44603900), (1886, 43113950), (1892, 42977225), (1978, 41108650), (2050, 39664834), (2150, 37819958), (2255, 36058940), (2300, 35353439), (2365, 34381780), (2530, 32139490), (3526, 23060950), (3646, 22301950), (3772, 21556975), (3956, 20554325), (4100, 19832417), (4300, 18909979), (4510, 18029470), (4715, 17245580), (4730, 17190890), (4945, 16443460), (5060, 16069745), (6325, 12855796), (7052, 11530475), (7292, 11150975), (8815, 9224380), (9020, 9014735), (9115, 8920780), (9430, 8622790), (9460, 8595445), (9890, 8221730), (10373, 7838900), (10879, 7474300), (11275, 7211788), (11825, 6876356), (12650, 6427898), (17630, 4612190), (18230, 4460390), (18860, 4311395), (19393, 4192900), (19780, 4110865), (20053, 4054900), (20746, 3919450), (21758, 3737150), (22550, 3605894), (23575, 3449116), (23650, 3438178), (24725, 3288692), (25300, 3213949), (35260, 2306095), (36460, 2230195), (38786, 2096450), (40106, 2027450), (40549, 2005300), (41492, 1959725), (41929, 1939300), (43516, 1868575), (44075, 1844876), (45100, 1802947), (45575, 1784156), (47150, 1724558), (47300, 1719089), (49450, 1644346), (51865, 1567780), (54395, 1494860), (74743, 1087900), (77572, 1048225), (78389, 1037300), (80212, 1013725), (81098, 1002650), (83858, 969650), (88150, 922438), (91150, 892078), (94300, 862279), (96965, 838580), (98900, 822173), (100265, 810980), (103730, 783890), (108790, 747430), (149486, 543950), (156778, 518650), (162196, 501325), (167716, 484825), (176300, 461219), (182300, 446039), (193930, 419290), (200530, 405490), (202745, 401060), (207460, 391945), (209645, 387860), (217580, 373715), (259325, 313556), (271975, 298972)]

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