31017380

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1889}}^1$

素因数の和:2719

約数の個数: 24

約数和(自身を含む): 65250360

約数和(自身を除く): 34232980

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 1889, 3284, 3778, 4105, 7556, 8210, 9445, 16420, 18890, 37780, 1550869, 3101738, 6203476, 7754345, 15508690, 31017380]

約数ペア:

[(1, 31017380), (2, 15508690), (4, 7754345), (5, 6203476), (10, 3101738), (20, 1550869), (821, 37780), (1642, 18890), (1889, 16420), (3284, 9445), (3778, 8210), (4105, 7556)]