20783220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3571}}^1$

素因数の和:3680

約数の個数: 48

約数和(自身を含む): 58809408

約数和(自身を除く): 38026188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3571, 5820, 7142, 10713, 14284, 17855, 21426, 35710, 42852, 53565, 71420, 107130, 214260, 346387, 692774, 1039161, 1385548, 1731935, 2078322, 3463870, 4156644, 5195805, 6927740, 10391610, 20783220]

約数ペア:

[(1, 20783220), (2, 10391610), (3, 6927740), (4, 5195805), (5, 4156644), (6, 3463870), (10, 2078322), (12, 1731935), (15, 1385548), (20, 1039161), (30, 692774), (60, 346387), (97, 214260), (194, 107130), (291, 71420), (388, 53565), (485, 42852), (582, 35710), (970, 21426), (1164, 17855), (1455, 14284), (1940, 10713), (2910, 7142), (3571, 5820)]