857249666

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{491}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 1624686336

約数和(自身を除く): 767436670

約数列:

[1, 2, 7, 13, 14, 26, 53, 91, 106, 181, 182, 362, 371, 491, 689, 742, 982, 1267, 1378, 2353, 2534, 3437, 4706, 4823, 6383, 6874, 9593, 9646, 12766, 16471, 19186, 26023, 32942, 44681, 52046, 67151, 88871, 89362, 124709, 134302, 177742, 182161, 249418, 338299, 364322, 622097, 676598, 872963, 1155323, 1244194, 1745926, 2310646, 2368093, 4710163, 4736186, 8087261, 9420326, 16174522, 32971141, 61232119, 65942282, 122464238, 428624833, 857249666]

約数ペア:

[(1, 857249666), (2, 428624833), (7, 122464238), (13, 65942282), (14, 61232119), (26, 32971141), (53, 16174522), (91, 9420326), (106, 8087261), (181, 4736186), (182, 4710163), (362, 2368093), (371, 2310646), (491, 1745926), (689, 1244194), (742, 1155323), (982, 872963), (1267, 676598), (1378, 622097), (2353, 364322), (2534, 338299), (3437, 249418), (4706, 182161), (4823, 177742), (6383, 134302), (6874, 124709), (9593, 89362), (9646, 88871), (12766, 67151), (16471, 52046), (19186, 44681), (26023, 32942)]