20747980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94309}}^1$

素因数の和:94329

約数の個数: 24

約数和(自身を含む): 47532240

約数和(自身を除く): 26784260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94309, 188618, 377236, 471545, 943090, 1037399, 1886180, 2074798, 4149596, 5186995, 10373990, 20747980]

約数ペア:

[(1, 20747980), (2, 10373990), (4, 5186995), (5, 4149596), (10, 2074798), (11, 1886180), (20, 1037399), (22, 943090), (44, 471545), (55, 377236), (110, 188618), (220, 94309)]