42456220

素因数分解:

$2^2\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{1997}}^1$

素因数の和:3069

約数の個数: 24

約数和(自身を含む): 89286624

約数和(自身を除く): 46830404

約数列:

[1, 2, 4, 5, 10, 20, 1063, 1997, 2126, 3994, 4252, 5315, 7988, 9985, 10630, 19970, 21260, 39940, 2122811, 4245622, 8491244, 10614055, 21228110, 42456220]

約数ペア:

[(1, 42456220), (2, 21228110), (4, 10614055), (5, 8491244), (10, 4245622), (20, 2122811), (1063, 39940), (1997, 21260), (2126, 19970), (3994, 10630), (4252, 9985), (5315, 7988)]