2009291120

素因数分解:

$2^4\times 5^1\times {\mathrm{25116139}}^1$

素因数の和:25116152

約数の個数: 20

約数和(自身を含む): 4671602040

約数和(自身を除く): 2662310920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25116139, 50232278, 100464556, 125580695, 200929112, 251161390, 401858224, 502322780, 1004645560, 2009291120]

約数ペア:

[(1, 2009291120), (2, 1004645560), (4, 502322780), (5, 401858224), (8, 251161390), (10, 200929112), (16, 125580695), (20, 100464556), (40, 50232278), (80, 25116139)]