20481125

素因数分解:

$5^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 9171355

約数列:

[1, 5, 7, 25, 35, 89, 125, 175, 263, 445, 623, 875, 1315, 1841, 2225, 3115, 6575, 9205, 11125, 15575, 23407, 32875, 46025, 77875, 117035, 163849, 230125, 585175, 819245, 2925875, 4096225, 20481125]

約数ペア:

[(1, 20481125), (5, 4096225), (7, 2925875), (25, 819245), (35, 585175), (89, 230125), (125, 163849), (175, 117035), (263, 77875), (445, 46025), (623, 32875), (875, 23407), (1315, 15575), (1841, 11125), (2225, 9205), (3115, 6575)]