4000448015

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1\times {\mathrm{19843}}^1$

素因数の和:20570

約数の個数: 16

約数和(自身を含む): 4886862816

約数和(自身を除く): 886414801

約数列:

[1, 5, 61, 305, 661, 3305, 19843, 40321, 99215, 201605, 1210423, 6052115, 13116223, 65581115, 800089603, 4000448015]

約数ペア:

[(1, 4000448015), (5, 800089603), (61, 65581115), (305, 13116223), (661, 6052115), (3305, 1210423), (19843, 201605), (40321, 99215)]