898171640

素因数分解:

$2^3\times 5^1\times {\mathrm{5011}}^1\times {\mathrm{4481}}^1$

素因数の和:9503

約数の個数: 32

約数和(自身を含む): 2021740560

約数和(自身を除く): 1123568920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4481, 5011, 8962, 10022, 17924, 20044, 22405, 25055, 35848, 40088, 44810, 50110, 89620, 100220, 179240, 200440, 22454291, 44908582, 89817164, 112271455, 179634328, 224542910, 449085820, 898171640]

約数ペア:

[(1, 898171640), (2, 449085820), (4, 224542910), (5, 179634328), (8, 112271455), (10, 89817164), (20, 44908582), (40, 22454291), (4481, 200440), (5011, 179240), (8962, 100220), (10022, 89620), (17924, 50110), (20044, 44810), (22405, 40088), (25055, 35848)]