19995940

素因数分解:

$2^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{2309}}^1$

素因数の和:2751

約数の個数: 24

約数和(自身を含む): 42106680

約数和(自身を除く): 22110740

約数列:

[1, 2, 4, 5, 10, 20, 433, 866, 1732, 2165, 2309, 4330, 4618, 8660, 9236, 11545, 23090, 46180, 999797, 1999594, 3999188, 4998985, 9997970, 19995940]

約数ペア:

[(1, 19995940), (2, 9997970), (4, 4998985), (5, 3999188), (10, 1999594), (20, 999797), (433, 46180), (866, 23090), (1732, 11545), (2165, 9236), (2309, 8660), (4330, 4618)]