40218980

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2017}}^1$

素因数の和:3023

約数の個数: 24

約数和(自身を含む): 84586488

約数和(自身を除く): 44367508

約数列:

[1, 2, 4, 5, 10, 20, 997, 1994, 2017, 3988, 4034, 4985, 8068, 9970, 10085, 19940, 20170, 40340, 2010949, 4021898, 8043796, 10054745, 20109490, 40218980]

約数ペア:

[(1, 40218980), (2, 20109490), (4, 10054745), (5, 8043796), (10, 4021898), (20, 2010949), (997, 40340), (1994, 20170), (2017, 19940), (3988, 10085), (4034, 9970), (4985, 8068)]