81019870

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{71699}}^1$

素因数の和:71819

約数の個数: 16

約数和(自身を含む): 147128400

約数和(自身を除く): 66108530

約数列:

[1, 2, 5, 10, 113, 226, 565, 1130, 71699, 143398, 358495, 716990, 8101987, 16203974, 40509935, 81019870]

約数ペア:

[(1, 81019870), (2, 40509935), (5, 16203974), (10, 8101987), (113, 716990), (226, 358495), (565, 143398), (1130, 71699)]