20020995

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4999}}^1$

素因数の和:5099

約数の個数: 24

約数和(自身を含む): 35100000

約数和(自身を除く): 15079005

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 4999, 14997, 24995, 44991, 74985, 224955, 444911, 1334733, 2224555, 4004199, 6673665, 20020995]

約数ペア:

[(1, 20020995), (3, 6673665), (5, 4004199), (9, 2224555), (15, 1334733), (45, 444911), (89, 224955), (267, 74985), (445, 44991), (801, 24995), (1335, 14997), (4005, 4999)]