1999767940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1\times {\mathrm{2693}}^1$

素因数の和:3156

約数の個数: 48

約数和(自身を含む): 4252554432

約数和(自身を除く): 2252786492

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 347, 428, 535, 694, 1070, 1388, 1735, 2140, 2693, 3470, 5386, 6940, 10772, 13465, 26930, 37129, 53860, 74258, 148516, 185645, 288151, 371290, 576302, 742580, 934471, 1152604, 1440755, 1868942, 2881510, 3737884, 4672355, 5763020, 9344710, 18689420, 99988397, 199976794, 399953588, 499941985, 999883970, 1999767940]

約数ペア:

[(1, 1999767940), (2, 999883970), (4, 499941985), (5, 399953588), (10, 199976794), (20, 99988397), (107, 18689420), (214, 9344710), (347, 5763020), (428, 4672355), (535, 3737884), (694, 2881510), (1070, 1868942), (1388, 1440755), (1735, 1152604), (2140, 934471), (2693, 742580), (3470, 576302), (5386, 371290), (6940, 288151), (10772, 185645), (13465, 148516), (26930, 74258), (37129, 53860)]