16520540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20147}}^1$

素因数の和:20197

約数の個数: 24

約数和(自身を含む): 35541072

約数和(自身を除く): 19020532

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20147, 40294, 80588, 100735, 201470, 402940, 826027, 1652054, 3304108, 4130135, 8260270, 16520540]

約数ペア:

[(1, 16520540), (2, 8260270), (4, 4130135), (5, 3304108), (10, 1652054), (20, 826027), (41, 402940), (82, 201470), (164, 100735), (205, 80588), (410, 40294), (820, 20147)]