809721940

素因数分解:

$2^2\times 5^1\times {\mathrm{1481}}^1\times {\mathrm{27337}}^1$

素因数の和:28827

約数の個数: 24

約数和(自身を含む): 1701626472

約数和(自身を除く): 891904532

約数列:

[1, 2, 4, 5, 10, 20, 1481, 2962, 5924, 7405, 14810, 27337, 29620, 54674, 109348, 136685, 273370, 546740, 40486097, 80972194, 161944388, 202430485, 404860970, 809721940]

約数ペア:

[(1, 809721940), (2, 404860970), (4, 202430485), (5, 161944388), (10, 80972194), (20, 40486097), (1481, 546740), (2962, 273370), (5924, 136685), (7405, 109348), (14810, 54674), (27337, 29620)]