128303420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 192

約数和(自身を含む): 353009664

約数和(自身を除く): 224706244

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 31, 34, 35, 37, 47, 62, 68, 70, 74, 85, 94, 119, 124, 140, 148, 155, 170, 185, 188, 217, 235, 238, 259, 310, 329, 340, 370, 434, 470, 476, 518, 527, 595, 620, 629, 658, 740, 799, 868, 940, 1036, 1054, 1085, 1147, 1190, 1258, 1295, 1316, 1457, 1598, 1645, 1739, 2108, 2170, 2294, 2380, 2516, 2590, 2635, 2914, 3145, 3196, 3290, 3478, 3689, 3995, 4340, 4403, 4588, 5180, 5270, 5593, 5735, 5828, 6290, 6580, 6956, 7285, 7378, 7990, 8029, 8695, 8806, 10199, 10540, 11186, 11470, 12173, 12580, 14570, 14756, 15980, 16058, 17390, 17612, 18445, 19499, 20398, 22015, 22372, 22940, 24346, 24769, 27965, 29140, 29563, 32116, 34780, 36890, 38998, 40145, 40796, 44030, 48692, 49538, 50995, 53909, 55930, 59126, 60865, 73780, 77996, 80290, 88060, 97495, 99076, 101990, 107818, 111860, 118252, 121730, 123845, 136493, 147815, 160580, 173383, 194990, 203980, 206941, 215636, 243460, 247690, 269545, 272986, 295630, 346766, 377363, 389980, 413882, 495380, 539090, 545972, 591260, 682465, 693532, 754726, 827764, 866915, 916453, 1034705, 1078180, 1364930, 1509452, 1733830, 1832906, 1886815, 2069410, 2729860, 3467660, 3665812, 3773630, 4138820, 4582265, 6415171, 7547260, 9164530, 12830342, 18329060, 25660684, 32075855, 64151710, 128303420]

約数ペア:

[(1, 128303420), (2, 64151710), (4, 32075855), (5, 25660684), (7, 18329060), (10, 12830342), (14, 9164530), (17, 7547260), (20, 6415171), (28, 4582265), (31, 4138820), (34, 3773630), (35, 3665812), (37, 3467660), (47, 2729860), (62, 2069410), (68, 1886815), (70, 1832906), (74, 1733830), (85, 1509452), (94, 1364930), (119, 1078180), (124, 1034705), (140, 916453), (148, 866915), (155, 827764), (170, 754726), (185, 693532), (188, 682465), (217, 591260), (235, 545972), (238, 539090), (259, 495380), (310, 413882), (329, 389980), (340, 377363), (370, 346766), (434, 295630), (470, 272986), (476, 269545), (518, 247690), (527, 243460), (595, 215636), (620, 206941), (629, 203980), (658, 194990), (740, 173383), (799, 160580), (868, 147815), (940, 136493), (1036, 123845), (1054, 121730), (1085, 118252), (1147, 111860), (1190, 107818), (1258, 101990), (1295, 99076), (1316, 97495), (1457, 88060), (1598, 80290), (1645, 77996), (1739, 73780), (2108, 60865), (2170, 59126), (2294, 55930), (2380, 53909), (2516, 50995), (2590, 49538), (2635, 48692), (2914, 44030), (3145, 40796), (3196, 40145), (3290, 38998), (3478, 36890), (3689, 34780), (3995, 32116), (4340, 29563), (4403, 29140), (4588, 27965), (5180, 24769), (5270, 24346), (5593, 22940), (5735, 22372), (5828, 22015), (6290, 20398), (6580, 19499), (6956, 18445), (7285, 17612), (7378, 17390), (7990, 16058), (8029, 15980), (8695, 14756), (8806, 14570), (10199, 12580), (10540, 12173), (11186, 11470)]