18218140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19381}}^1$

素因数の和:19437

約数の個数: 24

約数和(自身を含む): 39074112

約数和(自身を除く): 20855972

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19381, 38762, 77524, 96905, 193810, 387620, 910907, 1821814, 3643628, 4554535, 9109070, 18218140]

約数ペア:

[(1, 18218140), (2, 9109070), (4, 4554535), (5, 3643628), (10, 1821814), (20, 910907), (47, 387620), (94, 193810), (188, 96905), (235, 77524), (470, 38762), (940, 19381)]