28013325

素因数分解:

$3^1\times 5^2\times {\mathrm{311}}^1\times {\mathrm{1201}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 46502976

約数和(自身を除く): 18489651

約数列:

[1, 3, 5, 15, 25, 75, 311, 933, 1201, 1555, 3603, 4665, 6005, 7775, 18015, 23325, 30025, 90075, 373511, 1120533, 1867555, 5602665, 9337775, 28013325]

約数ペア:

[(1, 28013325), (3, 9337775), (5, 5602665), (15, 1867555), (25, 1120533), (75, 373511), (311, 90075), (933, 30025), (1201, 23325), (1555, 18015), (3603, 7775), (4665, 6005)]