51745000

素因数分解:

$2^3\times 5^4\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 123710400

約数和(自身を除く): 71965400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 79, 100, 125, 131, 158, 200, 250, 262, 316, 395, 500, 524, 625, 632, 655, 790, 1000, 1048, 1250, 1310, 1580, 1975, 2500, 2620, 3160, 3275, 3950, 5000, 5240, 6550, 7900, 9875, 10349, 13100, 15800, 16375, 19750, 20698, 26200, 32750, 39500, 41396, 49375, 51745, 65500, 79000, 81875, 82792, 98750, 103490, 131000, 163750, 197500, 206980, 258725, 327500, 395000, 413960, 517450, 655000, 1034900, 1293625, 2069800, 2587250, 5174500, 6468125, 10349000, 12936250, 25872500, 51745000]

約数ペア:

[(1, 51745000), (2, 25872500), (4, 12936250), (5, 10349000), (8, 6468125), (10, 5174500), (20, 2587250), (25, 2069800), (40, 1293625), (50, 1034900), (79, 655000), (100, 517450), (125, 413960), (131, 395000), (158, 327500), (200, 258725), (250, 206980), (262, 197500), (316, 163750), (395, 131000), (500, 103490), (524, 98750), (625, 82792), (632, 81875), (655, 79000), (790, 65500), (1000, 51745), (1048, 49375), (1250, 41396), (1310, 39500), (1580, 32750), (1975, 26200), (2500, 20698), (2620, 19750), (3160, 16375), (3275, 15800), (3950, 13100), (5000, 10349), (5240, 9875), (6550, 7900)]