8326520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 19768320

約数和(自身を除く): 11441800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 103, 172, 188, 206, 215, 235, 344, 376, 412, 430, 470, 515, 824, 860, 940, 1030, 1720, 1880, 2021, 2060, 4042, 4120, 4429, 4841, 8084, 8858, 9682, 10105, 16168, 17716, 19364, 20210, 22145, 24205, 35432, 38728, 40420, 44290, 48410, 80840, 88580, 96820, 177160, 193640, 208163, 416326, 832652, 1040815, 1665304, 2081630, 4163260, 8326520]

約数ペア:

[(1, 8326520), (2, 4163260), (4, 2081630), (5, 1665304), (8, 1040815), (10, 832652), (20, 416326), (40, 208163), (43, 193640), (47, 177160), (86, 96820), (94, 88580), (103, 80840), (172, 48410), (188, 44290), (206, 40420), (215, 38728), (235, 35432), (344, 24205), (376, 22145), (412, 20210), (430, 19364), (470, 17716), (515, 16168), (824, 10105), (860, 9682), (940, 8858), (1030, 8084), (1720, 4841), (1880, 4429), (2021, 4120), (2060, 4042)]