78766520

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5741}}^1$

素因数の和:5773

約数の個数: 64

約数和(自身を含む): 206712000

約数和(自身を除く): 127945480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 5741, 6860, 11482, 13720, 22964, 28705, 40187, 45928, 57410, 80374, 114820, 160748, 200935, 229640, 281309, 321496, 401870, 562618, 803740, 1125236, 1406545, 1607480, 1969163, 2250472, 2813090, 3938326, 5626180, 7876652, 9845815, 11252360, 15753304, 19691630, 39383260, 78766520]

約数ペア:

[(1, 78766520), (2, 39383260), (4, 19691630), (5, 15753304), (7, 11252360), (8, 9845815), (10, 7876652), (14, 5626180), (20, 3938326), (28, 2813090), (35, 2250472), (40, 1969163), (49, 1607480), (56, 1406545), (70, 1125236), (98, 803740), (140, 562618), (196, 401870), (245, 321496), (280, 281309), (343, 229640), (392, 200935), (490, 160748), (686, 114820), (980, 80374), (1372, 57410), (1715, 45928), (1960, 40187), (2744, 28705), (3430, 22964), (5741, 13720), (6860, 11482)]