20188936

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 39444480

約数和(自身を除く): 19255544

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 508, 641, 1016, 1282, 2564, 3937, 5128, 7874, 15748, 19871, 31496, 39742, 79484, 81407, 158968, 162814, 325628, 651256, 2523617, 5047234, 10094468, 20188936]

約数ペア:

[(1, 20188936), (2, 10094468), (4, 5047234), (8, 2523617), (31, 651256), (62, 325628), (124, 162814), (127, 158968), (248, 81407), (254, 79484), (508, 39742), (641, 31496), (1016, 19871), (1282, 15748), (2564, 7874), (3937, 5128)]