55478680

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 128471040

約数和(自身を除く): 72992360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 127, 134, 163, 254, 268, 326, 335, 508, 536, 635, 652, 670, 815, 1016, 1270, 1304, 1340, 1630, 2540, 2680, 3260, 5080, 6520, 8509, 10921, 17018, 20701, 21842, 34036, 41402, 42545, 43684, 54605, 68072, 82804, 85090, 87368, 103505, 109210, 165608, 170180, 207010, 218420, 340360, 414020, 436840, 828040, 1386967, 2773934, 5547868, 6934835, 11095736, 13869670, 27739340, 55478680]

約数ペア:

[(1, 55478680), (2, 27739340), (4, 13869670), (5, 11095736), (8, 6934835), (10, 5547868), (20, 2773934), (40, 1386967), (67, 828040), (127, 436840), (134, 414020), (163, 340360), (254, 218420), (268, 207010), (326, 170180), (335, 165608), (508, 109210), (536, 103505), (635, 87368), (652, 85090), (670, 82804), (815, 68072), (1016, 54605), (1270, 43684), (1304, 42545), (1340, 41402), (1630, 34036), (2540, 21842), (2680, 20701), (3260, 17018), (5080, 10921), (6520, 8509)]