81774416

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{46889}}^1$

素因数の和:47006

約数の個数: 20

約数和(自身を含む): 159894900

約数和(自身を除く): 78120484

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 46889, 93778, 187556, 375112, 750224, 5110901, 10221802, 20443604, 40887208, 81774416]

約数ペア:

[(1, 81774416), (2, 40887208), (4, 20443604), (8, 10221802), (16, 5110901), (109, 750224), (218, 375112), (436, 187556), (872, 93778), (1744, 46889)]