31939420

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11489}}^1$

素因数の和:11637

約数の個数: 24

約数和(自身を含む): 67561200

約数和(自身を除く): 35621780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 11489, 22978, 45956, 57445, 114890, 229780, 1596971, 3193942, 6387884, 7984855, 15969710, 31939420]

約数ペア:

[(1, 31939420), (2, 15969710), (4, 7984855), (5, 6387884), (10, 3193942), (20, 1596971), (139, 229780), (278, 114890), (556, 57445), (695, 45956), (1390, 22978), (2780, 11489)]