28004725

素因数分解:

$5^2\times 7^2\times {\mathrm{22861}}^1$

素因数の和:22885

約数の個数: 18

約数和(自身を含む): 40397154

約数和(自身を除く): 12392429

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 22861, 114305, 160027, 571525, 800135, 1120189, 4000675, 5600945, 28004725]

約数ペア:

[(1, 28004725), (5, 5600945), (7, 4000675), (25, 1120189), (35, 800135), (49, 571525), (175, 160027), (245, 114305), (1225, 22861)]