39853960

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1579}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 89870400

約数和(自身を除く): 50016440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 1579, 2524, 3155, 3158, 5048, 6310, 6316, 7895, 12620, 12632, 15790, 25240, 31580, 63160, 996349, 1992698, 3985396, 4981745, 7970792, 9963490, 19926980, 39853960]

約数ペア:

[(1, 39853960), (2, 19926980), (4, 9963490), (5, 7970792), (8, 4981745), (10, 3985396), (20, 1992698), (40, 996349), (631, 63160), (1262, 31580), (1579, 25240), (2524, 15790), (3155, 12632), (3158, 12620), (5048, 7895), (6310, 6316)]