25872500

素因数分解:

$2^2\times 5^4\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:234

約数の個数: 60

約数和(自身を含む): 57731520

約数和(自身を除く): 31859020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 131, 158, 250, 262, 316, 395, 500, 524, 625, 655, 790, 1250, 1310, 1580, 1975, 2500, 2620, 3275, 3950, 6550, 7900, 9875, 10349, 13100, 16375, 19750, 20698, 32750, 39500, 41396, 49375, 51745, 65500, 81875, 98750, 103490, 163750, 197500, 206980, 258725, 327500, 517450, 1034900, 1293625, 2587250, 5174500, 6468125, 12936250, 25872500]

約数ペア:

[(1, 25872500), (2, 12936250), (4, 6468125), (5, 5174500), (10, 2587250), (20, 1293625), (25, 1034900), (50, 517450), (79, 327500), (100, 258725), (125, 206980), (131, 197500), (158, 163750), (250, 103490), (262, 98750), (316, 81875), (395, 65500), (500, 51745), (524, 49375), (625, 41396), (655, 39500), (790, 32750), (1250, 20698), (1310, 19750), (1580, 16375), (1975, 13100), (2500, 10349), (2620, 9875), (3275, 7900), (3950, 6550)]