20810216

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26467864

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 92, 107, 151, 161, 184, 214, 302, 322, 428, 604, 644, 749, 856, 1057, 1208, 1288, 1498, 2114, 2461, 2996, 3473, 4228, 4922, 5992, 6946, 8456, 9844, 13892, 16157, 17227, 19688, 24311, 27784, 32314, 34454, 48622, 64628, 68908, 97244, 113099, 129256, 137816, 194488, 226198, 371611, 452396, 743222, 904792, 1486444, 2601277, 2972888, 5202554, 10405108, 20810216]

約数ペア:

[(1, 20810216), (2, 10405108), (4, 5202554), (7, 2972888), (8, 2601277), (14, 1486444), (23, 904792), (28, 743222), (46, 452396), (56, 371611), (92, 226198), (107, 194488), (151, 137816), (161, 129256), (184, 113099), (214, 97244), (302, 68908), (322, 64628), (428, 48622), (604, 34454), (644, 32314), (749, 27784), (856, 24311), (1057, 19688), (1208, 17227), (1288, 16157), (1498, 13892), (2114, 9844), (2461, 8456), (2996, 6946), (3473, 5992), (4228, 4922)]