254850008

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2011}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 571729920

約数和(自身を除く): 316879912

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 73, 124, 146, 217, 248, 292, 434, 511, 584, 868, 1022, 1736, 2011, 2044, 2263, 4022, 4088, 4526, 8044, 9052, 14077, 15841, 16088, 18104, 28154, 31682, 56308, 62341, 63364, 112616, 124682, 126728, 146803, 249364, 293606, 436387, 498728, 587212, 872774, 1027621, 1174424, 1745548, 2055242, 3491096, 4110484, 4550893, 8220968, 9101786, 18203572, 31856251, 36407144, 63712502, 127425004, 254850008]

約数ペア:

[(1, 254850008), (2, 127425004), (4, 63712502), (7, 36407144), (8, 31856251), (14, 18203572), (28, 9101786), (31, 8220968), (56, 4550893), (62, 4110484), (73, 3491096), (124, 2055242), (146, 1745548), (217, 1174424), (248, 1027621), (292, 872774), (434, 587212), (511, 498728), (584, 436387), (868, 293606), (1022, 249364), (1736, 146803), (2011, 126728), (2044, 124682), (2263, 112616), (4022, 63364), (4088, 62341), (4526, 56308), (8044, 31682), (9052, 28154), (14077, 18104), (15841, 16088)]