19745275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3779}}^1$

素因数の和:3819

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 8377925

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 3779, 5225, 18895, 41569, 71801, 94475, 207845, 359005, 789811, 1039225, 1795025, 3949055, 19745275]

約数ペア:

[(1, 19745275), (5, 3949055), (11, 1795025), (19, 1039225), (25, 789811), (55, 359005), (95, 207845), (209, 94475), (275, 71801), (475, 41569), (1045, 18895), (3779, 5225)]