28505380

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12613}}^1$

素因数の和:12735

約数の個数: 24

約数和(自身を含む): 60395832

約数和(自身を除く): 31890452

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 12613, 25226, 50452, 63065, 126130, 252260, 1425269, 2850538, 5701076, 7126345, 14252690, 28505380]

約数ペア:

[(1, 28505380), (2, 14252690), (4, 7126345), (5, 5701076), (10, 2850538), (20, 1425269), (113, 252260), (226, 126130), (452, 63065), (565, 50452), (1130, 25226), (2260, 12613)]