20680605

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 40098240

約数和(自身を除く): 19417635

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 165, 205, 369, 451, 495, 615, 1019, 1353, 1845, 2255, 3057, 4059, 5095, 6765, 9171, 11209, 15285, 20295, 33627, 41779, 45855, 56045, 100881, 125337, 168135, 208895, 376011, 459569, 504405, 626685, 1378707, 1880055, 2297845, 4136121, 6893535, 20680605]

約数ペア:

[(1, 20680605), (3, 6893535), (5, 4136121), (9, 2297845), (11, 1880055), (15, 1378707), (33, 626685), (41, 504405), (45, 459569), (55, 376011), (99, 208895), (123, 168135), (165, 125337), (205, 100881), (369, 56045), (451, 45855), (495, 41779), (615, 33627), (1019, 20295), (1353, 15285), (1845, 11209), (2255, 9171), (3057, 6765), (4059, 5095)]