7841480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 18627840

約数和(自身を除く): 10786360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 97, 172, 188, 194, 215, 235, 344, 376, 388, 430, 470, 485, 776, 860, 940, 970, 1720, 1880, 1940, 2021, 3880, 4042, 4171, 4559, 8084, 8342, 9118, 10105, 16168, 16684, 18236, 20210, 20855, 22795, 33368, 36472, 40420, 41710, 45590, 80840, 83420, 91180, 166840, 182360, 196037, 392074, 784148, 980185, 1568296, 1960370, 3920740, 7841480]

約数ペア:

[(1, 7841480), (2, 3920740), (4, 1960370), (5, 1568296), (8, 980185), (10, 784148), (20, 392074), (40, 196037), (43, 182360), (47, 166840), (86, 91180), (94, 83420), (97, 80840), (172, 45590), (188, 41710), (194, 40420), (215, 36472), (235, 33368), (344, 22795), (376, 20855), (388, 20210), (430, 18236), (470, 16684), (485, 16168), (776, 10105), (860, 9118), (940, 8342), (970, 8084), (1720, 4559), (1880, 4171), (1940, 4042), (2021, 3880)]