406140140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2901001}}^1$

素因数の和:2901017

約数の個数: 24

約数和(自身を含む): 974736672

約数和(自身を除く): 568596532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2901001, 5802002, 11604004, 14505005, 20307007, 29010010, 40614014, 58020020, 81228028, 101535035, 203070070, 406140140]

約数ペア:

[(1, 406140140), (2, 203070070), (4, 101535035), (5, 81228028), (7, 58020020), (10, 40614014), (14, 29010010), (20, 20307007), (28, 14505005), (35, 11604004), (70, 5802002), (140, 2901001)]