1980275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:419

約数の個数: 24

約数和(自身を含む): 2827200

約数和(自身を除く): 846925

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 379, 475, 1045, 1895, 4169, 5225, 7201, 9475, 20845, 36005, 79211, 104225, 180025, 396055, 1980275]

約数ペア:

[(1, 1980275), (5, 396055), (11, 180025), (19, 104225), (25, 79211), (55, 36005), (95, 20845), (209, 9475), (275, 7201), (379, 5225), (475, 4169), (1045, 1895)]