18489940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{132071}}^1$

素因数の和:132087

約数の個数: 24

約数和(自身を含む): 44376192

約数和(自身を除く): 25886252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 132071, 264142, 528284, 660355, 924497, 1320710, 1848994, 2641420, 3697988, 4622485, 9244970, 18489940]

約数ペア:

[(1, 18489940), (2, 9244970), (4, 4622485), (5, 3697988), (7, 2641420), (10, 1848994), (14, 1320710), (20, 924497), (28, 660355), (35, 528284), (70, 264142), (140, 132071)]