25639094

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 22261066

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 43, 71, 86, 142, 221, 247, 323, 442, 494, 559, 646, 731, 817, 923, 1118, 1207, 1349, 1462, 1634, 1846, 2414, 2698, 3053, 4199, 6106, 8398, 9503, 10621, 13889, 15691, 17537, 19006, 21242, 22933, 27778, 31382, 35074, 39689, 45866, 51901, 58007, 79378, 103802, 116014, 180557, 298129, 361114, 596258, 674713, 754091, 986119, 1349426, 1508182, 1972238, 12819547, 25639094]

約数ペア:

[(1, 25639094), (2, 12819547), (13, 1972238), (17, 1508182), (19, 1349426), (26, 986119), (34, 754091), (38, 674713), (43, 596258), (71, 361114), (86, 298129), (142, 180557), (221, 116014), (247, 103802), (323, 79378), (442, 58007), (494, 51901), (559, 45866), (646, 39689), (731, 35074), (817, 31382), (923, 27778), (1118, 22933), (1207, 21242), (1349, 19006), (1462, 17537), (1634, 15691), (1846, 13889), (2414, 10621), (2698, 9503), (3053, 8398), (4199, 6106)]