4021790

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 7603200

約数和(自身を除く): 3581410

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 199, 215, 235, 398, 430, 470, 995, 1990, 2021, 4042, 8557, 9353, 10105, 17114, 18706, 20210, 42785, 46765, 85570, 93530, 402179, 804358, 2010895, 4021790]

約数ペア:

[(1, 4021790), (2, 2010895), (5, 804358), (10, 402179), (43, 93530), (47, 85570), (86, 46765), (94, 42785), (199, 20210), (215, 18706), (235, 17114), (398, 10105), (430, 9353), (470, 8557), (995, 4042), (1990, 2021)]