1620996890

素因数分解:

$2^1\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{148579}}^1$

素因数の和:149677

約数の個数: 16

約数和(自身を含む): 2920488480

約数和(自身を除く): 1299491590

約数列:

[1, 2, 5, 10, 1091, 2182, 5455, 10910, 148579, 297158, 742895, 1485790, 162099689, 324199378, 810498445, 1620996890]

約数ペア:

[(1, 1620996890), (2, 810498445), (5, 324199378), (10, 162099689), (1091, 1485790), (2182, 742895), (5455, 297158), (10910, 148579)]