20574872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{607}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 40857600

約数和(自身を除く): 20282728

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 223, 446, 607, 892, 1214, 1784, 2428, 4237, 4856, 8474, 11533, 16948, 23066, 33896, 46132, 92264, 135361, 270722, 541444, 1082888, 2571859, 5143718, 10287436, 20574872]

約数ペア:

[(1, 20574872), (2, 10287436), (4, 5143718), (8, 2571859), (19, 1082888), (38, 541444), (76, 270722), (152, 135361), (223, 92264), (446, 46132), (607, 33896), (892, 23066), (1214, 16948), (1784, 11533), (2428, 8474), (4237, 4856)]