19826020

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1571}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 41727168

約数和(自身を除く): 21901148

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1571, 2524, 3142, 3155, 6284, 6310, 7855, 12620, 15710, 31420, 991301, 1982602, 3965204, 4956505, 9913010, 19826020]

約数ペア:

[(1, 19826020), (2, 9913010), (4, 4956505), (5, 3965204), (10, 1982602), (20, 991301), (631, 31420), (1262, 15710), (1571, 12620), (2524, 7855), (3142, 6310), (3155, 6284)]