245655160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{198109}}^1$

素因数の和:198151

約数の個数: 32

約数和(自身を含む): 570556800

約数和(自身を除く): 324901640

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 198109, 396218, 792436, 990545, 1584872, 1981090, 3962180, 6141379, 7924360, 12282758, 24565516, 30706895, 49131032, 61413790, 122827580, 245655160]

約数ペア:

[(1, 245655160), (2, 122827580), (4, 61413790), (5, 49131032), (8, 30706895), (10, 24565516), (20, 12282758), (31, 7924360), (40, 6141379), (62, 3962180), (124, 1981090), (155, 1584872), (248, 990545), (310, 792436), (620, 396218), (1240, 198109)]