20120804020

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1278323}}^1$

素因数の和:1279119

約数の個数: 24

約数和(自身を含む): 42307411104

約数和(自身を除く): 22186607084

約数列:

[1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 7870, 15740, 1278323, 2556646, 5113292, 6391615, 12783230, 25566460, 1006040201, 2012080402, 4024160804, 5030201005, 10060402010, 20120804020]

約数ペア:

[(1, 20120804020), (2, 10060402010), (4, 5030201005), (5, 4024160804), (10, 2012080402), (20, 1006040201), (787, 25566460), (1574, 12783230), (3148, 6391615), (3935, 5113292), (7870, 2556646), (15740, 1278323)]