1686040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{691}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 3861360

約数和(自身を除く): 2175320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 691, 1220, 1382, 2440, 2764, 3455, 5528, 6910, 13820, 27640, 42151, 84302, 168604, 210755, 337208, 421510, 843020, 1686040]

約数ペア:

[(1, 1686040), (2, 843020), (4, 421510), (5, 337208), (8, 210755), (10, 168604), (20, 84302), (40, 42151), (61, 27640), (122, 13820), (244, 6910), (305, 5528), (488, 3455), (610, 2764), (691, 2440), (1220, 1382)]