71384290

素因数分解:

$2^1\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{3571}}^1$

素因数の和:5577

約数の個数: 16

約数和(自身を含む): 128592000

約数和(自身を除く): 57207710

約数列:

[1, 2, 5, 10, 1999, 3571, 3998, 7142, 9995, 17855, 19990, 35710, 7138429, 14276858, 35692145, 71384290]

約数ペア:

[(1, 71384290), (2, 35692145), (5, 14276858), (10, 7138429), (1999, 35710), (3571, 19990), (3998, 17855), (7142, 9995)]