556971820

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{42131}}^1$

素因数の和:42801

約数の個数: 24

約数和(自身を含む): 1171438128

約数和(自身を除く): 614466308

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 2644, 3305, 6610, 13220, 42131, 84262, 168524, 210655, 421310, 842620, 27848591, 55697182, 111394364, 139242955, 278485910, 556971820]

約数ペア:

[(1, 556971820), (2, 278485910), (4, 139242955), (5, 111394364), (10, 55697182), (20, 27848591), (661, 842620), (1322, 421310), (2644, 210655), (3305, 168524), (6610, 84262), (13220, 42131)]