159208540

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{89443}}^1$

素因数の和:89541

約数の個数: 24

約数和(自身を含む): 338098320

約数和(自身を除く): 178889780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 89443, 178886, 357772, 447215, 894430, 1788860, 7960427, 15920854, 31841708, 39802135, 79604270, 159208540]

約数ペア:

[(1, 159208540), (2, 79604270), (4, 39802135), (5, 31841708), (10, 15920854), (20, 7960427), (89, 1788860), (178, 894430), (356, 447215), (445, 357772), (890, 178886), (1780, 89443)]