31997005

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{1481}}^1$

素因数の和:1664

約数の個数: 16

約数和(自身を含む): 40014000

約数和(自身を除く): 8016995

約数列:

[1, 5, 29, 145, 149, 745, 1481, 4321, 7405, 21605, 42949, 214745, 220669, 1103345, 6399401, 31997005]

約数ペア:

[(1, 31997005), (5, 6399401), (29, 1103345), (145, 220669), (149, 214745), (745, 42949), (1481, 21605), (4321, 7405)]