81856712

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{719}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 186624000

約数和(自身を除く): 104767288

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 107, 133, 152, 214, 266, 428, 532, 719, 749, 856, 1064, 1438, 1498, 2033, 2876, 2996, 4066, 5033, 5752, 5992, 8132, 10066, 13661, 14231, 16264, 20132, 27322, 28462, 40264, 54644, 56924, 76933, 95627, 109288, 113848, 153866, 191254, 307732, 382508, 538531, 615464, 765016, 1077062, 1461727, 2154124, 2923454, 4308248, 5846908, 10232089, 11693816, 20464178, 40928356, 81856712]

約数ペア:

[(1, 81856712), (2, 40928356), (4, 20464178), (7, 11693816), (8, 10232089), (14, 5846908), (19, 4308248), (28, 2923454), (38, 2154124), (56, 1461727), (76, 1077062), (107, 765016), (133, 615464), (152, 538531), (214, 382508), (266, 307732), (428, 191254), (532, 153866), (719, 113848), (749, 109288), (856, 95627), (1064, 76933), (1438, 56924), (1498, 54644), (2033, 40264), (2876, 28462), (2996, 27322), (4066, 20132), (5033, 16264), (5752, 14231), (5992, 13661), (8132, 10066)]