1800980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{5297}}^1$

素因数の和:5323

約数の個数: 24

約数和(自身を含む): 4005288

約数和(自身を除く): 2204308

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 5297, 10594, 21188, 26485, 52970, 90049, 105940, 180098, 360196, 450245, 900490, 1800980]

約数ペア:

[(1, 1800980), (2, 900490), (4, 450245), (5, 360196), (10, 180098), (17, 105940), (20, 90049), (34, 52970), (68, 26485), (85, 21188), (170, 10594), (340, 5297)]