648940578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{1579}}^1$

素因数の和:2087

約数の個数: 64

約数和(自身を含む): 1528934400

約数和(自身を除く): 879993822

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 479, 858, 958, 1437, 1579, 2874, 3158, 4737, 5269, 6227, 9474, 10538, 12454, 15807, 17369, 18681, 20527, 31614, 34738, 37362, 41054, 52107, 61581, 68497, 104214, 123162, 136994, 205491, 225797, 410982, 451594, 677391, 756341, 1354782, 1512682, 2269023, 4538046, 8319751, 9832433, 16639502, 19664866, 24959253, 29497299, 49918506, 58994598, 108156763, 216313526, 324470289, 648940578]

約数ペア:

[(1, 648940578), (2, 324470289), (3, 216313526), (6, 108156763), (11, 58994598), (13, 49918506), (22, 29497299), (26, 24959253), (33, 19664866), (39, 16639502), (66, 9832433), (78, 8319751), (143, 4538046), (286, 2269023), (429, 1512682), (479, 1354782), (858, 756341), (958, 677391), (1437, 451594), (1579, 410982), (2874, 225797), (3158, 205491), (4737, 136994), (5269, 123162), (6227, 104214), (9474, 68497), (10538, 61581), (12454, 52107), (15807, 41054), (17369, 37362), (18681, 34738), (20527, 31614)]