218968910

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{821}}^1$

素因数の和:1156

約数の個数: 32

約数和(自身を含む): 399492000

約数和(自身を除く): 180523090

約数列:

[1, 2, 5, 10, 149, 179, 298, 358, 745, 821, 895, 1490, 1642, 1790, 4105, 8210, 26671, 53342, 122329, 133355, 146959, 244658, 266710, 293918, 611645, 734795, 1223290, 1469590, 21896891, 43793782, 109484455, 218968910]

約数ペア:

[(1, 218968910), (2, 109484455), (5, 43793782), (10, 21896891), (149, 1469590), (179, 1223290), (298, 734795), (358, 611645), (745, 293918), (821, 266710), (895, 244658), (1490, 146959), (1642, 133355), (1790, 122329), (4105, 53342), (8210, 26671)]