258520390

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1\times {\mathrm{1429}}^1$

素因数の和:1744

約数の個数: 32

約数和(自身を含む): 473616000

約数和(自身を除く): 215095610

約数列:

[1, 2, 5, 10, 79, 158, 229, 395, 458, 790, 1145, 1429, 2290, 2858, 7145, 14290, 18091, 36182, 90455, 112891, 180910, 225782, 327241, 564455, 654482, 1128910, 1636205, 3272410, 25852039, 51704078, 129260195, 258520390]

約数ペア:

[(1, 258520390), (2, 129260195), (5, 51704078), (10, 25852039), (79, 3272410), (158, 1636205), (229, 1128910), (395, 654482), (458, 564455), (790, 327241), (1145, 225782), (1429, 180910), (2290, 112891), (2858, 90455), (7145, 36182), (14290, 18091)]