128816820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 288

約数和(自身を含む): 467026560

約数和(自身を除く): 338209740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 43, 44, 45, 51, 55, 60, 66, 68, 85, 86, 89, 90, 99, 102, 110, 129, 132, 153, 165, 170, 172, 178, 180, 187, 198, 204, 215, 220, 255, 258, 267, 306, 330, 340, 356, 374, 387, 396, 430, 445, 473, 495, 510, 516, 534, 561, 612, 645, 660, 731, 748, 765, 774, 801, 860, 890, 935, 946, 979, 990, 1020, 1068, 1122, 1290, 1335, 1419, 1462, 1513, 1530, 1548, 1602, 1683, 1780, 1870, 1892, 1935, 1958, 1980, 2193, 2244, 2365, 2580, 2670, 2805, 2838, 2924, 2937, 3026, 3060, 3204, 3366, 3655, 3740, 3827, 3870, 3916, 4005, 4257, 4386, 4539, 4730, 4895, 5340, 5610, 5676, 5874, 6052, 6579, 6732, 7095, 7310, 7565, 7654, 7740, 8010, 8041, 8415, 8514, 8772, 8811, 9078, 9460, 9790, 10965, 11220, 11481, 11748, 13158, 13617, 14190, 14620, 14685, 15130, 15308, 16020, 16082, 16643, 16830, 17028, 17622, 18156, 19135, 19580, 21285, 21930, 22695, 22962, 24123, 26316, 27234, 28380, 29370, 30260, 32164, 32895, 33286, 33660, 34443, 35244, 38270, 40205, 42097, 42570, 43860, 44055, 45390, 45924, 48246, 49929, 54468, 57405, 58740, 65059, 65790, 66572, 68085, 68886, 72369, 76540, 80410, 83215, 84194, 85140, 88110, 90780, 96492, 99858, 114810, 120615, 126291, 130118, 131580, 136170, 137772, 144738, 149787, 160820, 166430, 168388, 172215, 176220, 195177, 199716, 210485, 229620, 241230, 249645, 252582, 260236, 272340, 289476, 299574, 325295, 332860, 344430, 361845, 378873, 390354, 420970, 482460, 499290, 505164, 585531, 599148, 631455, 650590, 688860, 715649, 723690, 748935, 757746, 780708, 841940, 975885, 998580, 1171062, 1262910, 1301180, 1431298, 1447380, 1497870, 1515492, 1894365, 1951770, 2146947, 2342124, 2525820, 2862596, 2927655, 2995740, 3578245, 3788730, 3903540, 4293894, 5855310, 6440841, 7156490, 7577460, 8587788, 10734735, 11710620, 12881682, 14312980, 21469470, 25763364, 32204205, 42938940, 64408410, 128816820]

約数ペア:

[(1, 128816820), (2, 64408410), (3, 42938940), (4, 32204205), (5, 25763364), (6, 21469470), (9, 14312980), (10, 12881682), (11, 11710620), (12, 10734735), (15, 8587788), (17, 7577460), (18, 7156490), (20, 6440841), (22, 5855310), (30, 4293894), (33, 3903540), (34, 3788730), (36, 3578245), (43, 2995740), (44, 2927655), (45, 2862596), (51, 2525820), (55, 2342124), (60, 2146947), (66, 1951770), (68, 1894365), (85, 1515492), (86, 1497870), (89, 1447380), (90, 1431298), (99, 1301180), (102, 1262910), (110, 1171062), (129, 998580), (132, 975885), (153, 841940), (165, 780708), (170, 757746), (172, 748935), (178, 723690), (180, 715649), (187, 688860), (198, 650590), (204, 631455), (215, 599148), (220, 585531), (255, 505164), (258, 499290), (267, 482460), (306, 420970), (330, 390354), (340, 378873), (356, 361845), (374, 344430), (387, 332860), (396, 325295), (430, 299574), (445, 289476), (473, 272340), (495, 260236), (510, 252582), (516, 249645), (534, 241230), (561, 229620), (612, 210485), (645, 199716), (660, 195177), (731, 176220), (748, 172215), (765, 168388), (774, 166430), (801, 160820), (860, 149787), (890, 144738), (935, 137772), (946, 136170), (979, 131580), (990, 130118), (1020, 126291), (1068, 120615), (1122, 114810), (1290, 99858), (1335, 96492), (1419, 90780), (1462, 88110), (1513, 85140), (1530, 84194), (1548, 83215), (1602, 80410), (1683, 76540), (1780, 72369), (1870, 68886), (1892, 68085), (1935, 66572), (1958, 65790), (1980, 65059), (2193, 58740), (2244, 57405), (2365, 54468), (2580, 49929), (2670, 48246), (2805, 45924), (2838, 45390), (2924, 44055), (2937, 43860), (3026, 42570), (3060, 42097), (3204, 40205), (3366, 38270), (3655, 35244), (3740, 34443), (3827, 33660), (3870, 33286), (3916, 32895), (4005, 32164), (4257, 30260), (4386, 29370), (4539, 28380), (4730, 27234), (4895, 26316), (5340, 24123), (5610, 22962), (5676, 22695), (5874, 21930), (6052, 21285), (6579, 19580), (6732, 19135), (7095, 18156), (7310, 17622), (7565, 17028), (7654, 16830), (7740, 16643), (8010, 16082), (8041, 16020), (8415, 15308), (8514, 15130), (8772, 14685), (8811, 14620), (9078, 14190), (9460, 13617), (9790, 13158), (10965, 11748), (11220, 11481)]