39880225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20717}}^1$

素因数の和:20745

約数の個数: 24

約数和(自身を含む): 61656768

約数和(自身を除く): 21776543

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 20717, 103585, 145019, 227887, 517925, 725095, 1139435, 1595209, 3625475, 5697175, 7976045, 39880225]

約数ペア:

[(1, 39880225), (5, 7976045), (7, 5697175), (11, 3625475), (25, 1595209), (35, 1139435), (55, 725095), (77, 517925), (175, 227887), (275, 145019), (385, 103585), (1925, 20717)]