15806020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11131}}^1$

素因数の和:11211

約数の個数: 24

約数和(自身を含む): 33663168

約数和(自身を除く): 17857148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 11131, 22262, 44524, 55655, 111310, 222620, 790301, 1580602, 3161204, 3951505, 7903010, 15806020]

約数ペア:

[(1, 15806020), (2, 7903010), (4, 3951505), (5, 3161204), (10, 1580602), (20, 790301), (71, 222620), (142, 111310), (284, 55655), (355, 44524), (710, 22262), (1420, 11131)]