20018325

素因数分解:

$3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{2999}}^1$

素因数の和:3101

約数の個数: 24

約数和(自身を含む): 33480000

約数和(自身を除く): 13461675

約数列:

[1, 3, 5, 15, 25, 75, 89, 267, 445, 1335, 2225, 2999, 6675, 8997, 14995, 44985, 74975, 224925, 266911, 800733, 1334555, 4003665, 6672775, 20018325]

約数ペア:

[(1, 20018325), (3, 6672775), (5, 4003665), (15, 1334555), (25, 800733), (75, 266911), (89, 224925), (267, 74975), (445, 44985), (1335, 14995), (2225, 8997), (2999, 6675)]