42857680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31513}}^1$

素因数の和:31543

約数の個数: 40

約数和(自身を含む): 105508872

約数和(自身を除く): 62651192

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 31513, 63026, 126052, 157565, 252104, 315130, 504208, 535721, 630260, 1071442, 1260520, 2142884, 2521040, 2678605, 4285768, 5357210, 8571536, 10714420, 21428840, 42857680]

約数ペア:

[(1, 42857680), (2, 21428840), (4, 10714420), (5, 8571536), (8, 5357210), (10, 4285768), (16, 2678605), (17, 2521040), (20, 2142884), (34, 1260520), (40, 1071442), (68, 630260), (80, 535721), (85, 504208), (136, 315130), (170, 252104), (272, 157565), (340, 126052), (680, 63026), (1360, 31513)]