646793966

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{691}}^1$

素因数の和:889

約数の個数: 64

約数和(自身を含む): 1236963840

約数和(自身を除く): 590169874

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 139, 182, 259, 278, 481, 518, 691, 962, 973, 1382, 1807, 1946, 3367, 3614, 4837, 5143, 6734, 8983, 9674, 10286, 12649, 17966, 25298, 25567, 36001, 51134, 62881, 66859, 72002, 96049, 125762, 133718, 178969, 192098, 332371, 357938, 468013, 664742, 672343, 936026, 1248637, 1344686, 2326597, 2497274, 3553813, 4653194, 7107626, 8740459, 17480918, 24876691, 46199569, 49753382, 92399138, 323396983, 646793966]

約数ペア:

[(1, 646793966), (2, 323396983), (7, 92399138), (13, 49753382), (14, 46199569), (26, 24876691), (37, 17480918), (74, 8740459), (91, 7107626), (139, 4653194), (182, 3553813), (259, 2497274), (278, 2326597), (481, 1344686), (518, 1248637), (691, 936026), (962, 672343), (973, 664742), (1382, 468013), (1807, 357938), (1946, 332371), (3367, 192098), (3614, 178969), (4837, 133718), (5143, 125762), (6734, 96049), (8983, 72002), (9674, 66859), (10286, 62881), (12649, 51134), (17966, 36001), (25298, 25567)]