53123020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 114095520

約数和(自身を除く): 60972500

約数列:

[1, 2, 4, 5, 10, 20, 97, 139, 194, 197, 278, 388, 394, 485, 556, 695, 788, 970, 985, 1390, 1940, 1970, 2780, 3940, 13483, 19109, 26966, 27383, 38218, 53932, 54766, 67415, 76436, 95545, 109532, 134830, 136915, 191090, 269660, 273830, 382180, 547660, 2656151, 5312302, 10624604, 13280755, 26561510, 53123020]

約数ペア:

[(1, 53123020), (2, 26561510), (4, 13280755), (5, 10624604), (10, 5312302), (20, 2656151), (97, 547660), (139, 382180), (194, 273830), (197, 269660), (278, 191090), (388, 136915), (394, 134830), (485, 109532), (556, 95545), (695, 76436), (788, 67415), (970, 54766), (985, 53932), (1390, 38218), (1940, 27383), (1970, 26966), (2780, 19109), (3940, 13483)]