128292880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:257

約数の個数: 120

約数和(自身を含む): 328907520

約数和(自身を除く): 200614640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 179, 248, 272, 289, 310, 340, 358, 496, 527, 578, 620, 680, 716, 895, 1054, 1156, 1240, 1360, 1432, 1445, 1790, 2108, 2312, 2480, 2635, 2864, 2890, 3043, 3580, 4216, 4624, 5270, 5549, 5780, 6086, 7160, 8432, 8959, 10540, 11098, 11560, 12172, 14320, 15215, 17918, 21080, 22196, 23120, 24344, 27745, 30430, 35836, 42160, 44392, 44795, 48688, 51731, 55490, 60860, 71672, 88784, 89590, 94333, 103462, 110980, 121720, 143344, 179180, 188666, 206924, 221960, 243440, 258655, 358360, 377332, 413848, 443920, 471665, 517310, 716720, 754664, 827696, 943330, 1034620, 1509328, 1603661, 1886660, 2069240, 3207322, 3773320, 4138480, 6414644, 7546640, 8018305, 12829288, 16036610, 25658576, 32073220, 64146440, 128292880]

約数ペア:

[(1, 128292880), (2, 64146440), (4, 32073220), (5, 25658576), (8, 16036610), (10, 12829288), (16, 8018305), (17, 7546640), (20, 6414644), (31, 4138480), (34, 3773320), (40, 3207322), (62, 2069240), (68, 1886660), (80, 1603661), (85, 1509328), (124, 1034620), (136, 943330), (155, 827696), (170, 754664), (179, 716720), (248, 517310), (272, 471665), (289, 443920), (310, 413848), (340, 377332), (358, 358360), (496, 258655), (527, 243440), (578, 221960), (620, 206924), (680, 188666), (716, 179180), (895, 143344), (1054, 121720), (1156, 110980), (1240, 103462), (1360, 94333), (1432, 89590), (1445, 88784), (1790, 71672), (2108, 60860), (2312, 55490), (2480, 51731), (2635, 48688), (2864, 44795), (2890, 44392), (3043, 42160), (3580, 35836), (4216, 30430), (4624, 27745), (5270, 24344), (5549, 23120), (5780, 22196), (6086, 21080), (7160, 17918), (8432, 15215), (8959, 14320), (10540, 12172), (11098, 11560)]