1808985020

素因数分解:

$2^2\times 5^1\times {\mathrm{3433}}^1\times {\mathrm{26347}}^1$

素因数の和:29789

約数の個数: 24

約数和(自身を含む): 3800119344

約数和(自身を除く): 1991134324

約数列:

[1, 2, 4, 5, 10, 20, 3433, 6866, 13732, 17165, 26347, 34330, 52694, 68660, 105388, 131735, 263470, 526940, 90449251, 180898502, 361797004, 452246255, 904492510, 1808985020]

約数ペア:

[(1, 1808985020), (2, 904492510), (4, 452246255), (5, 361797004), (10, 180898502), (20, 90449251), (3433, 526940), (6866, 263470), (13732, 131735), (17165, 105388), (26347, 68660), (34330, 52694)]