20790020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17041}}^1$

素因数の和:17111

約数の個数: 24

約数和(自身を含む): 44377368

約数和(自身を除く): 23587348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 17041, 34082, 68164, 85205, 170410, 340820, 1039501, 2079002, 4158004, 5197505, 10395010, 20790020]

約数ペア:

[(1, 20790020), (2, 10395010), (4, 5197505), (5, 4158004), (10, 2079002), (20, 1039501), (61, 340820), (122, 170410), (244, 85205), (305, 68164), (610, 34082), (1220, 17041)]