68918020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 149506560

約数和(自身を除く): 80588540

約数列:

[1, 2, 4, 5, 10, 20, 53, 79, 106, 158, 212, 265, 316, 395, 530, 790, 823, 1060, 1580, 1646, 3292, 4115, 4187, 8230, 8374, 16460, 16748, 20935, 41870, 43619, 65017, 83740, 87238, 130034, 174476, 218095, 260068, 325085, 436190, 650170, 872380, 1300340, 3445901, 6891802, 13783604, 17229505, 34459010, 68918020]

約数ペア:

[(1, 68918020), (2, 34459010), (4, 17229505), (5, 13783604), (10, 6891802), (20, 3445901), (53, 1300340), (79, 872380), (106, 650170), (158, 436190), (212, 325085), (265, 260068), (316, 218095), (395, 174476), (530, 130034), (790, 87238), (823, 83740), (1060, 65017), (1580, 43619), (1646, 41870), (3292, 20935), (4115, 16748), (4187, 16460), (8230, 8374)]