81398876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{3137}}^1$

素因数の和:3653

約数の個数: 24

約数和(自身を含む): 153762000

約数和(自身を除く): 72363124

約数列:

[1, 2, 4, 13, 26, 52, 499, 998, 1996, 3137, 6274, 6487, 12548, 12974, 25948, 40781, 81562, 163124, 1565363, 3130726, 6261452, 20349719, 40699438, 81398876]

約数ペア:

[(1, 81398876), (2, 40699438), (4, 20349719), (13, 6261452), (26, 3130726), (52, 1565363), (499, 163124), (998, 81562), (1996, 40781), (3137, 25948), (6274, 12974), (6487, 12548)]