210912620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 452390400

約数和(自身を除く): 241477780

約数列:

[1, 2, 4, 5, 10, 20, 79, 131, 158, 262, 316, 395, 524, 655, 790, 1019, 1310, 1580, 2038, 2620, 4076, 5095, 10190, 10349, 20380, 20698, 41396, 51745, 80501, 103490, 133489, 161002, 206980, 266978, 322004, 402505, 533956, 667445, 805010, 1334890, 1610020, 2669780, 10545631, 21091262, 42182524, 52728155, 105456310, 210912620]

約数ペア:

[(1, 210912620), (2, 105456310), (4, 52728155), (5, 42182524), (10, 21091262), (20, 10545631), (79, 2669780), (131, 1610020), (158, 1334890), (262, 805010), (316, 667445), (395, 533956), (524, 402505), (655, 322004), (790, 266978), (1019, 206980), (1310, 161002), (1580, 133489), (2038, 103490), (2620, 80501), (4076, 51745), (5095, 41396), (10190, 20698), (10349, 20380)]