81745328

素因数分解:

$2^4\times 7^2\times {\mathrm{127}}^1\times {\mathrm{821}}^1$

素因数の和:970

約数の個数: 60

約数和(自身を含む): 185916672

約数和(自身を除く): 104171344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 127, 196, 254, 392, 508, 784, 821, 889, 1016, 1642, 1778, 2032, 3284, 3556, 5747, 6223, 6568, 7112, 11494, 12446, 13136, 14224, 22988, 24892, 40229, 45976, 49784, 80458, 91952, 99568, 104267, 160916, 208534, 321832, 417068, 643664, 729869, 834136, 1459738, 1668272, 2919476, 5109083, 5838952, 10218166, 11677904, 20436332, 40872664, 81745328]

約数ペア:

[(1, 81745328), (2, 40872664), (4, 20436332), (7, 11677904), (8, 10218166), (14, 5838952), (16, 5109083), (28, 2919476), (49, 1668272), (56, 1459738), (98, 834136), (112, 729869), (127, 643664), (196, 417068), (254, 321832), (392, 208534), (508, 160916), (784, 104267), (821, 99568), (889, 91952), (1016, 80458), (1642, 49784), (1778, 45976), (2032, 40229), (3284, 24892), (3556, 22988), (5747, 14224), (6223, 13136), (6568, 12446), (7112, 11494)]