28905400

素因数分解:

$2^3\times 5^2\times {\mathrm{113}}^1\times {\mathrm{1279}}^1$

素因数の和:1408

約数の個数: 48

約数和(自身を含む): 67852800

約数和(自身を除く): 38947400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 113, 200, 226, 452, 565, 904, 1130, 1279, 2260, 2558, 2825, 4520, 5116, 5650, 6395, 10232, 11300, 12790, 22600, 25580, 31975, 51160, 63950, 127900, 144527, 255800, 289054, 578108, 722635, 1156216, 1445270, 2890540, 3613175, 5781080, 7226350, 14452700, 28905400]

約数ペア:

[(1, 28905400), (2, 14452700), (4, 7226350), (5, 5781080), (8, 3613175), (10, 2890540), (20, 1445270), (25, 1156216), (40, 722635), (50, 578108), (100, 289054), (113, 255800), (200, 144527), (226, 127900), (452, 63950), (565, 51160), (904, 31975), (1130, 25580), (1279, 22600), (2260, 12790), (2558, 11300), (2825, 10232), (4520, 6395), (5116, 5650)]