858789425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4201}}^1$

素因数の和:4278

約数の個数: 48

約数和(自身を含む): 1247388912

約数和(自身を除く): 388599487

約数列:

[1, 5, 13, 17, 25, 37, 65, 85, 185, 221, 325, 425, 481, 629, 925, 1105, 2405, 3145, 4201, 5525, 8177, 12025, 15725, 21005, 40885, 54613, 71417, 105025, 155437, 204425, 273065, 357085, 777185, 928421, 1365325, 1785425, 2020681, 2642429, 3885925, 4642105, 10103405, 13212145, 23210525, 34351577, 50517025, 66060725, 171757885, 858789425]

約数ペア:

[(1, 858789425), (5, 171757885), (13, 66060725), (17, 50517025), (25, 34351577), (37, 23210525), (65, 13212145), (85, 10103405), (185, 4642105), (221, 3885925), (325, 2642429), (425, 2020681), (481, 1785425), (629, 1365325), (925, 928421), (1105, 777185), (2405, 357085), (3145, 273065), (4201, 204425), (5525, 155437), (8177, 105025), (12025, 71417), (15725, 54613), (21005, 40885)]