201517820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1439413}}^1$

素因数の和:1439429

約数の個数: 24

約数和(自身を含む): 483643104

約数和(自身を除く): 282125284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1439413, 2878826, 5757652, 7197065, 10075891, 14394130, 20151782, 28788260, 40303564, 50379455, 100758910, 201517820]

約数ペア:

[(1, 201517820), (2, 100758910), (4, 50379455), (5, 40303564), (7, 28788260), (10, 20151782), (14, 14394130), (20, 10075891), (28, 7197065), (35, 5757652), (70, 2878826), (140, 1439413)]