200997220

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{12241}}^1$

素因数の和:13071

約数の個数: 24

約数和(自身を含む): 422642808

約数和(自身を除く): 221645588

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 12241, 16420, 24482, 48964, 61205, 122410, 244820, 10049861, 20099722, 40199444, 50249305, 100498610, 200997220]

約数ペア:

[(1, 200997220), (2, 100498610), (4, 50249305), (5, 40199444), (10, 20099722), (20, 10049861), (821, 244820), (1642, 122410), (3284, 61205), (4105, 48964), (8210, 24482), (12241, 16420)]