20865050

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{6841}}^1$

素因数の和:6914

約数の個数: 24

約数和(自身を含む): 39450972

約数和(自身を除く): 18585922

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 6841, 13682, 34205, 68410, 171025, 342050, 417301, 834602, 2086505, 4173010, 10432525, 20865050]

約数ペア:

[(1, 20865050), (2, 10432525), (5, 4173010), (10, 2086505), (25, 834602), (50, 417301), (61, 342050), (122, 171025), (305, 68410), (610, 34205), (1525, 13682), (3050, 6841)]