13405391920

素因数分解:

$2^4\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{162529}}^1$

素因数の和:163573

約数の個数: 40

約数和(自身を含む): 31197958560

約数和(自身を除く): 17792566640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1031, 2062, 4124, 5155, 8248, 10310, 16496, 20620, 41240, 82480, 162529, 325058, 650116, 812645, 1300232, 1625290, 2600464, 3250580, 6501160, 13002320, 167567399, 335134798, 670269596, 837836995, 1340539192, 1675673990, 2681078384, 3351347980, 6702695960, 13405391920]

約数ペア:

[(1, 13405391920), (2, 6702695960), (4, 3351347980), (5, 2681078384), (8, 1675673990), (10, 1340539192), (16, 837836995), (20, 670269596), (40, 335134798), (80, 167567399), (1031, 13002320), (2062, 6501160), (4124, 3250580), (5155, 2600464), (8248, 1625290), (10310, 1300232), (16496, 812645), (20620, 650116), (41240, 325058), (82480, 162529)]