81979070

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{190649}}^1$

素因数の和:190699

約数の個数: 16

約数和(自身を含む): 150994800

約数和(自身を除く): 69015730

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 190649, 381298, 953245, 1906490, 8197907, 16395814, 40989535, 81979070]

約数ペア:

[(1, 81979070), (2, 40989535), (5, 16395814), (10, 8197907), (43, 1906490), (86, 953245), (215, 381298), (430, 190649)]