20013075

素因数分解:

$3^4\times 5^2\times {\mathrm{9883}}^1$

素因数の和:9905

約数の個数: 30

約数和(自身を含む): 37074884

約数和(自身を除く): 17061809

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9883, 29649, 49415, 88947, 148245, 247075, 266841, 444735, 741225, 800523, 1334205, 2223675, 4002615, 6671025, 20013075]

約数ペア:

[(1, 20013075), (3, 6671025), (5, 4002615), (9, 2223675), (15, 1334205), (25, 800523), (27, 741225), (45, 444735), (75, 266841), (81, 247075), (135, 148245), (225, 88947), (405, 49415), (675, 29649), (2025, 9883)]