80727080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1259}}^1$

素因数の和:1506

約数の個数: 64

約数和(自身を含む): 208656000

約数和(自身を除く): 127928920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 916, 1145, 1259, 1603, 1832, 2290, 2518, 3206, 4580, 5036, 6295, 6412, 8015, 8813, 9160, 10072, 12590, 12824, 16030, 17626, 25180, 32060, 35252, 44065, 50360, 64120, 70504, 88130, 176260, 288311, 352520, 576622, 1153244, 1441555, 2018177, 2306488, 2883110, 4036354, 5766220, 8072708, 10090885, 11532440, 16145416, 20181770, 40363540, 80727080]

約数ペア:

[(1, 80727080), (2, 40363540), (4, 20181770), (5, 16145416), (7, 11532440), (8, 10090885), (10, 8072708), (14, 5766220), (20, 4036354), (28, 2883110), (35, 2306488), (40, 2018177), (56, 1441555), (70, 1153244), (140, 576622), (229, 352520), (280, 288311), (458, 176260), (916, 88130), (1145, 70504), (1259, 64120), (1603, 50360), (1832, 44065), (2290, 35252), (2518, 32060), (3206, 25180), (4580, 17626), (5036, 16030), (6295, 12824), (6412, 12590), (8015, 10072), (8813, 9160)]