219603920

素因数分解:

$2^4\times 5^1\times {\mathrm{2745049}}^1$

素因数の和:2745062

約数の個数: 20

約数和(自身を含む): 510579300

約数和(自身を除く): 290975380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2745049, 5490098, 10980196, 13725245, 21960392, 27450490, 43920784, 54900980, 109801960, 219603920]

約数ペア:

[(1, 219603920), (2, 109801960), (4, 54900980), (5, 43920784), (8, 27450490), (10, 21960392), (16, 13725245), (20, 10980196), (40, 5490098), (80, 2745049)]