31814680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{25657}}^1$

素因数の和:25699

約数の個数: 32

約数和(自身を含む): 73895040

約数和(自身を除く): 42080360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 25657, 51314, 102628, 128285, 205256, 256570, 513140, 795367, 1026280, 1590734, 3181468, 3976835, 6362936, 7953670, 15907340, 31814680]

約数ペア:

[(1, 31814680), (2, 15907340), (4, 7953670), (5, 6362936), (8, 3976835), (10, 3181468), (20, 1590734), (31, 1026280), (40, 795367), (62, 513140), (124, 256570), (155, 205256), (248, 128285), (310, 102628), (620, 51314), (1240, 25657)]