18701980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85009}}^1$

素因数の和:85029

約数の個数: 24

約数和(自身を含む): 42845040

約数和(自身を除く): 24143060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85009, 170018, 340036, 425045, 850090, 935099, 1700180, 1870198, 3740396, 4675495, 9350990, 18701980]

約数ペア:

[(1, 18701980), (2, 9350990), (4, 4675495), (5, 3740396), (10, 1870198), (11, 1700180), (20, 935099), (22, 850090), (44, 425045), (55, 340036), (110, 170018), (220, 85009)]