8043580

素因数分解:

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

素因数の和:298

約数の個数: 48

約数和(自身を含む): 17740800

約数和(自身を除く): 9697220

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 199, 215, 235, 398, 430, 470, 796, 860, 940, 995, 1990, 2021, 3980, 4042, 8084, 8557, 9353, 10105, 17114, 18706, 20210, 34228, 37412, 40420, 42785, 46765, 85570, 93530, 171140, 187060, 402179, 804358, 1608716, 2010895, 4021790, 8043580]

約数ペア:

[(1, 8043580), (2, 4021790), (4, 2010895), (5, 1608716), (10, 804358), (20, 402179), (43, 187060), (47, 171140), (86, 93530), (94, 85570), (172, 46765), (188, 42785), (199, 40420), (215, 37412), (235, 34228), (398, 20210), (430, 18706), (470, 17114), (796, 10105), (860, 9353), (940, 8557), (995, 8084), (1990, 4042), (2021, 3980)]