519887920

素因数分解:

$2^4\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{5081}}^1$

素因数の和:6373

約数の個数: 40

約数和(自身を含む): 1209922560

約数和(自身を除く): 690034640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1279, 2558, 5081, 5116, 6395, 10162, 10232, 12790, 20324, 20464, 25405, 25580, 40648, 50810, 51160, 81296, 101620, 102320, 203240, 406480, 6498599, 12997198, 25994396, 32492995, 51988792, 64985990, 103977584, 129971980, 259943960, 519887920]

約数ペア:

[(1, 519887920), (2, 259943960), (4, 129971980), (5, 103977584), (8, 64985990), (10, 51988792), (16, 32492995), (20, 25994396), (40, 12997198), (80, 6498599), (1279, 406480), (2558, 203240), (5081, 102320), (5116, 101620), (6395, 81296), (10162, 51160), (10232, 50810), (12790, 40648), (20324, 25580), (20464, 25405)]