278817418

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 488581632

約数和(自身を除く): 209764214

約数列:

[1, 2, 11, 22, 43, 53, 67, 83, 86, 106, 134, 166, 473, 583, 737, 913, 946, 1166, 1474, 1826, 2279, 2881, 3551, 3569, 4399, 4558, 5561, 5762, 7102, 7138, 8798, 11122, 25069, 31691, 39061, 39259, 48389, 50138, 61171, 63382, 78122, 78518, 96778, 122342, 152693, 189157, 239123, 294733, 305386, 378314, 478246, 589466, 1679623, 2080727, 2630353, 3242063, 3359246, 4161454, 5260706, 6484126, 12673519, 25347038, 139408709, 278817418]

約数ペア:

[(1, 278817418), (2, 139408709), (11, 25347038), (22, 12673519), (43, 6484126), (53, 5260706), (67, 4161454), (83, 3359246), (86, 3242063), (106, 2630353), (134, 2080727), (166, 1679623), (473, 589466), (583, 478246), (737, 378314), (913, 305386), (946, 294733), (1166, 239123), (1474, 189157), (1826, 152693), (2279, 122342), (2881, 96778), (3551, 78518), (3569, 78122), (4399, 63382), (4558, 61171), (5561, 50138), (5762, 48389), (7102, 39259), (7138, 39061), (8798, 31691), (11122, 25069)]