3718840

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 8424000

約数和(自身を除く): 4705160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 389, 478, 778, 956, 1195, 1556, 1912, 1945, 2390, 3112, 3890, 4780, 7780, 9560, 15560, 92971, 185942, 371884, 464855, 743768, 929710, 1859420, 3718840]

約数ペア:

[(1, 3718840), (2, 1859420), (4, 929710), (5, 743768), (8, 464855), (10, 371884), (20, 185942), (40, 92971), (239, 15560), (389, 9560), (478, 7780), (778, 4780), (956, 3890), (1195, 3112), (1556, 2390), (1912, 1945)]