209707260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71329}}^1$

素因数の和:71355

約数の個数: 72

約数和(自身を含む): 683056080

約数和(自身を除く): 473348820

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 71329, 142658, 213987, 285316, 356645, 427974, 499303, 713290, 855948, 998606, 1069935, 1426580, 1497909, 1997212, 2139870, 2496515, 2995818, 3495121, 4279740, 4993030, 5991636, 6990242, 7489545, 9986060, 10485363, 13980484, 14979090, 17475605, 20970726, 29958180, 34951210, 41941452, 52426815, 69902420, 104853630, 209707260]

約数ペア:

[(1, 209707260), (2, 104853630), (3, 69902420), (4, 52426815), (5, 41941452), (6, 34951210), (7, 29958180), (10, 20970726), (12, 17475605), (14, 14979090), (15, 13980484), (20, 10485363), (21, 9986060), (28, 7489545), (30, 6990242), (35, 5991636), (42, 4993030), (49, 4279740), (60, 3495121), (70, 2995818), (84, 2496515), (98, 2139870), (105, 1997212), (140, 1497909), (147, 1426580), (196, 1069935), (210, 998606), (245, 855948), (294, 713290), (420, 499303), (490, 427974), (588, 356645), (735, 285316), (980, 213987), (1470, 142658), (2940, 71329)]