31293880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25237}}^1$

素因数の和:25279

約数の個数: 32

約数和(自身を含む): 72685440

約数和(自身を除く): 41391560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25237, 50474, 100948, 126185, 201896, 252370, 504740, 782347, 1009480, 1564694, 3129388, 3911735, 6258776, 7823470, 15646940, 31293880]

約数ペア:

[(1, 31293880), (2, 15646940), (4, 7823470), (5, 6258776), (8, 3911735), (10, 3129388), (20, 1564694), (31, 1009480), (40, 782347), (62, 504740), (124, 252370), (155, 201896), (248, 126185), (310, 100948), (620, 50474), (1240, 25237)]