18860980

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{5647}}^1$

素因数の和:5823

約数の個数: 24

約数和(自身を含む): 39852288

約数和(自身を除く): 20991308

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 5647, 11294, 22588, 28235, 56470, 112940, 943049, 1886098, 3772196, 4715245, 9430490, 18860980]

約数ペア:

[(1, 18860980), (2, 9430490), (4, 4715245), (5, 3772196), (10, 1886098), (20, 943049), (167, 112940), (334, 56470), (668, 28235), (835, 22588), (1670, 11294), (3340, 5647)]