16613980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43721}}^1$

素因数の和:43749

約数の個数: 24

約数和(自身を含む): 36726480

約数和(自身を除く): 20112500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 43721, 87442, 174884, 218605, 437210, 830699, 874420, 1661398, 3322796, 4153495, 8306990, 16613980]

約数ペア:

[(1, 16613980), (2, 8306990), (4, 4153495), (5, 3322796), (10, 1661398), (19, 874420), (20, 830699), (38, 437210), (76, 218605), (95, 174884), (190, 87442), (380, 43721)]