81472874

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:507

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 78194326

約数列:

[1, 2, 7, 14, 17, 19, 34, 38, 43, 86, 119, 133, 238, 266, 301, 323, 419, 602, 646, 731, 817, 838, 1462, 1634, 2261, 2933, 4522, 5117, 5719, 5866, 7123, 7961, 10234, 11438, 13889, 14246, 15922, 18017, 27778, 36034, 49861, 55727, 97223, 99722, 111454, 126119, 135337, 194446, 252238, 270674, 306289, 342323, 612578, 684646, 947359, 1894718, 2144023, 2396261, 4288046, 4792522, 5819491, 11638982, 40736437, 81472874]

約数ペア:

[(1, 81472874), (2, 40736437), (7, 11638982), (14, 5819491), (17, 4792522), (19, 4288046), (34, 2396261), (38, 2144023), (43, 1894718), (86, 947359), (119, 684646), (133, 612578), (238, 342323), (266, 306289), (301, 270674), (323, 252238), (419, 194446), (602, 135337), (646, 126119), (731, 111454), (817, 99722), (838, 97223), (1462, 55727), (1634, 49861), (2261, 36034), (2933, 27778), (4522, 18017), (5117, 15922), (5719, 14246), (5866, 13889), (7123, 11438), (7961, 10234)]