90810400

素因数分解:

$2^5\times 5^2\times {\mathrm{113513}}^1$

素因数の和:113533

約数の個数: 36

約数和(自身を含む): 221692842

約数和(自身を除く): 130882442

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 113513, 227026, 454052, 567565, 908104, 1135130, 1816208, 2270260, 2837825, 3632416, 4540520, 5675650, 9081040, 11351300, 18162080, 22702600, 45405200, 90810400]

約数ペア:

[(1, 90810400), (2, 45405200), (4, 22702600), (5, 18162080), (8, 11351300), (10, 9081040), (16, 5675650), (20, 4540520), (25, 3632416), (32, 2837825), (40, 2270260), (50, 1816208), (80, 1135130), (100, 908104), (160, 567565), (200, 454052), (400, 227026), (800, 113513)]