20225980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21517}}^1$

素因数の和:21573

約数の個数: 24

約数和(自身を含む): 43380288

約数和(自身を除く): 23154308

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21517, 43034, 86068, 107585, 215170, 430340, 1011299, 2022598, 4045196, 5056495, 10112990, 20225980]

約数ペア:

[(1, 20225980), (2, 10112990), (4, 5056495), (5, 4045196), (10, 2022598), (20, 1011299), (47, 430340), (94, 215170), (188, 107585), (235, 86068), (470, 43034), (940, 21517)]