20120840180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{143720287}}^1$

素因数の和:143720303

約数の個数: 24

約数和(自身を含む): 48290016768

約数和(自身を除く): 28169176588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 143720287, 287440574, 574881148, 718601435, 1006042009, 1437202870, 2012084018, 2874405740, 4024168036, 5030210045, 10060420090, 20120840180]

約数ペア:

[(1, 20120840180), (2, 10060420090), (4, 5030210045), (5, 4024168036), (7, 2874405740), (10, 2012084018), (14, 1437202870), (20, 1006042009), (28, 718601435), (35, 574881148), (70, 287440574), (140, 143720287)]