40642540

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16001}}^1$

素因数の和:16137

約数の個数: 24

約数和(自身を含む): 86026752

約数和(自身を除く): 45384212

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 16001, 32002, 64004, 80005, 160010, 320020, 2032127, 4064254, 8128508, 10160635, 20321270, 40642540]

約数ペア:

[(1, 40642540), (2, 20321270), (4, 10160635), (5, 8128508), (10, 4064254), (20, 2032127), (127, 320020), (254, 160010), (508, 80005), (635, 64004), (1270, 32002), (2540, 16001)]