318370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:130

約数の個数: 32

約数和(自身を含む): 645120

約数和(自身を除く): 326750

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 79, 130, 155, 158, 310, 395, 403, 790, 806, 1027, 2015, 2054, 2449, 4030, 4898, 5135, 10270, 12245, 24490, 31837, 63674, 159185, 318370]

約数ペア:

[(1, 318370), (2, 159185), (5, 63674), (10, 31837), (13, 24490), (26, 12245), (31, 10270), (62, 5135), (65, 4898), (79, 4030), (130, 2449), (155, 2054), (158, 2015), (310, 1027), (395, 806), (403, 790)]