248839482520

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1871}}^1\times {\mathrm{5171}}^1$

素因数の和:7696

約数の個数: 64

約数和(自身を含む): 561167792640

約数和(自身を除く): 312328310120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 1871, 2572, 3215, 3742, 5144, 5171, 6430, 7484, 9355, 10342, 12860, 14968, 18710, 20684, 25720, 25855, 37420, 41368, 51710, 74840, 103420, 206840, 1203053, 2406106, 3324953, 4812212, 6015265, 6649906, 9624424, 9674941, 12030530, 13299812, 16624765, 19349882, 24061060, 26599624, 33249530, 38699764, 48122120, 48374705, 66499060, 77399528, 96749410, 132998120, 193498820, 386997640, 6220987063, 12441974126, 24883948252, 31104935315, 49767896504, 62209870630, 124419741260, 248839482520]

約数ペア:

[(1, 248839482520), (2, 124419741260), (4, 62209870630), (5, 49767896504), (8, 31104935315), (10, 24883948252), (20, 12441974126), (40, 6220987063), (643, 386997640), (1286, 193498820), (1871, 132998120), (2572, 96749410), (3215, 77399528), (3742, 66499060), (5144, 48374705), (5171, 48122120), (6430, 38699764), (7484, 33249530), (9355, 26599624), (10342, 24061060), (12860, 19349882), (14968, 16624765), (18710, 13299812), (20684, 12030530), (25720, 9674941), (25855, 9624424), (37420, 6649906), (41368, 6015265), (51710, 4812212), (74840, 3324953), (103420, 2406106), (206840, 1203053)]