65221340

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28859}}^1$

素因数の和:28981

約数の個数: 24

約数和(自身を含む): 138181680

約数和(自身を除く): 72960340

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 28859, 57718, 115436, 144295, 288590, 577180, 3261067, 6522134, 13044268, 16305335, 32610670, 65221340]

約数ペア:

[(1, 65221340), (2, 32610670), (4, 16305335), (5, 13044268), (10, 6522134), (20, 3261067), (113, 577180), (226, 288590), (452, 144295), (565, 115436), (1130, 57718), (2260, 28859)]