2805280340

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{202987}}^1$

素因数の和:203687

約数の個数: 24

約数和(自身を含む): 5899643232

約数和(自身を除く): 3094362892

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 2764, 3455, 6910, 13820, 202987, 405974, 811948, 1014935, 2029870, 4059740, 140264017, 280528034, 561056068, 701320085, 1402640170, 2805280340]

約数ペア:

[(1, 2805280340), (2, 1402640170), (4, 701320085), (5, 561056068), (10, 280528034), (20, 140264017), (691, 4059740), (1382, 2029870), (2764, 1014935), (3455, 811948), (6910, 405974), (13820, 202987)]