81611312

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{45139}}^1$

素因数の和:45260

約数の個数: 20

約数和(自身を含む): 159524760

約数和(自身を除く): 77913448

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 45139, 90278, 180556, 361112, 722224, 5100707, 10201414, 20402828, 40805656, 81611312]

約数ペア:

[(1, 81611312), (2, 40805656), (4, 20402828), (8, 10201414), (16, 5100707), (113, 722224), (226, 361112), (452, 180556), (904, 90278), (1808, 45139)]