311240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 725760

約数和(自身を除く): 414520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 251, 310, 502, 620, 1004, 1240, 1255, 2008, 2510, 5020, 7781, 10040, 15562, 31124, 38905, 62248, 77810, 155620, 311240]

約数ペア:

[(1, 311240), (2, 155620), (4, 77810), (5, 62248), (8, 38905), (10, 31124), (20, 15562), (31, 10040), (40, 7781), (62, 5020), (124, 2510), (155, 2008), (248, 1255), (251, 1240), (310, 1004), (502, 620)]