31693960

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1627}}^1$

素因数の和:2125

約数の個数: 32

約数和(自身を含む): 71501760

約数和(自身を除く): 39807800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1627, 1948, 2435, 3254, 3896, 4870, 6508, 8135, 9740, 13016, 16270, 19480, 32540, 65080, 792349, 1584698, 3169396, 3961745, 6338792, 7923490, 15846980, 31693960]

約数ペア:

[(1, 31693960), (2, 15846980), (4, 7923490), (5, 6338792), (8, 3961745), (10, 3169396), (20, 1584698), (40, 792349), (487, 65080), (974, 32540), (1627, 19480), (1948, 16270), (2435, 13016), (3254, 9740), (3896, 8135), (4870, 6508)]