204578320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{134591}}^1$

素因数の和:134623

約数の個数: 40

約数和(自身を含む): 500682240

約数和(自身を除く): 296103920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 134591, 269182, 538364, 672955, 1076728, 1345910, 2153456, 2557229, 2691820, 5114458, 5383640, 10228916, 10767280, 12786145, 20457832, 25572290, 40915664, 51144580, 102289160, 204578320]

約数ペア:

[(1, 204578320), (2, 102289160), (4, 51144580), (5, 40915664), (8, 25572290), (10, 20457832), (16, 12786145), (19, 10767280), (20, 10228916), (38, 5383640), (40, 5114458), (76, 2691820), (80, 2557229), (95, 2153456), (152, 1345910), (190, 1076728), (304, 672955), (380, 538364), (760, 269182), (1520, 134591)]