12912996920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1980521}}^1$

素因数の和:1980695

約数の個数: 32

約数和(自身を含む): 29232504720

約数和(自身を除く): 16319507800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 1980521, 3961042, 7922084, 9902605, 15844168, 19805210, 39610420, 79220840, 322824923, 645649846, 1291299692, 1614124615, 2582599384, 3228249230, 6456498460, 12912996920]

約数ペア:

[(1, 12912996920), (2, 6456498460), (4, 3228249230), (5, 2582599384), (8, 1614124615), (10, 1291299692), (20, 645649846), (40, 322824923), (163, 79220840), (326, 39610420), (652, 19805210), (815, 15844168), (1304, 9902605), (1630, 7922084), (3260, 3961042), (6520, 1980521)]