77556668

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 161280000

約数和(自身を除く): 83723332

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 199, 217, 398, 434, 449, 796, 868, 898, 1393, 1796, 2786, 3143, 5572, 6169, 6286, 12338, 12572, 13919, 24676, 27838, 43183, 55676, 86366, 89351, 97433, 172732, 178702, 194866, 357404, 389732, 625457, 1250914, 2501828, 2769881, 5539762, 11079524, 19389167, 38778334, 77556668]

約数ペア:

[(1, 77556668), (2, 38778334), (4, 19389167), (7, 11079524), (14, 5539762), (28, 2769881), (31, 2501828), (62, 1250914), (124, 625457), (199, 389732), (217, 357404), (398, 194866), (434, 178702), (449, 172732), (796, 97433), (868, 89351), (898, 86366), (1393, 55676), (1796, 43183), (2786, 27838), (3143, 24676), (5572, 13919), (6169, 12572), (6286, 12338)]