81637580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{177473}}^1$

素因数の和:177505

約数の個数: 24

約数和(自身を含む): 178893792

約数和(自身を除く): 97256212

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 177473, 354946, 709892, 887365, 1774730, 3549460, 4081879, 8163758, 16327516, 20409395, 40818790, 81637580]

約数ペア:

[(1, 81637580), (2, 40818790), (4, 20409395), (5, 16327516), (10, 8163758), (20, 4081879), (23, 3549460), (46, 1774730), (92, 887365), (115, 709892), (230, 354946), (460, 177473)]