9880360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71}}^2$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 26229690

約数和(自身を除く): 16349330

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 196, 245, 280, 284, 355, 392, 490, 497, 568, 710, 980, 994, 1420, 1960, 1988, 2485, 2840, 3479, 3976, 4970, 5041, 6958, 9940, 10082, 13916, 17395, 19880, 20164, 25205, 27832, 34790, 35287, 40328, 50410, 69580, 70574, 100820, 139160, 141148, 176435, 201640, 247009, 282296, 352870, 494018, 705740, 988036, 1235045, 1411480, 1976072, 2470090, 4940180, 9880360]

約数ペア:

[(1, 9880360), (2, 4940180), (4, 2470090), (5, 1976072), (7, 1411480), (8, 1235045), (10, 988036), (14, 705740), (20, 494018), (28, 352870), (35, 282296), (40, 247009), (49, 201640), (56, 176435), (70, 141148), (71, 139160), (98, 100820), (140, 70574), (142, 69580), (196, 50410), (245, 40328), (280, 35287), (284, 34790), (355, 27832), (392, 25205), (490, 20164), (497, 19880), (568, 17395), (710, 13916), (980, 10082), (994, 9940), (1420, 6958), (1960, 5041), (1988, 4970), (2485, 3976), (2840, 3479)]