90425560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2767}}^1$

素因数の和:2840

約数の個数: 64

約数和(自身を含む): 219225600

約数和(自身を除く): 128800040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 344, 380, 430, 760, 817, 860, 1634, 1720, 2767, 3268, 4085, 5534, 6536, 8170, 11068, 13835, 16340, 22136, 27670, 32680, 52573, 55340, 105146, 110680, 118981, 210292, 237962, 262865, 420584, 475924, 525730, 594905, 951848, 1051460, 1189810, 2102920, 2260639, 2379620, 4521278, 4759240, 9042556, 11303195, 18085112, 22606390, 45212780, 90425560]

約数ペア:

[(1, 90425560), (2, 45212780), (4, 22606390), (5, 18085112), (8, 11303195), (10, 9042556), (19, 4759240), (20, 4521278), (38, 2379620), (40, 2260639), (43, 2102920), (76, 1189810), (86, 1051460), (95, 951848), (152, 594905), (172, 525730), (190, 475924), (215, 420584), (344, 262865), (380, 237962), (430, 210292), (760, 118981), (817, 110680), (860, 105146), (1634, 55340), (1720, 52573), (2767, 32680), (3268, 27670), (4085, 22136), (5534, 16340), (6536, 13835), (8170, 11068)]