7810520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 19008000

約数和(自身を除く): 11197480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 76, 86, 95, 152, 172, 190, 215, 239, 344, 380, 430, 478, 760, 817, 860, 956, 1195, 1634, 1720, 1912, 2390, 3268, 4085, 4541, 4780, 6536, 8170, 9082, 9560, 10277, 16340, 18164, 20554, 22705, 32680, 36328, 41108, 45410, 51385, 82216, 90820, 102770, 181640, 195263, 205540, 390526, 411080, 781052, 976315, 1562104, 1952630, 3905260, 7810520]

約数ペア:

[(1, 7810520), (2, 3905260), (4, 1952630), (5, 1562104), (8, 976315), (10, 781052), (19, 411080), (20, 390526), (38, 205540), (40, 195263), (43, 181640), (76, 102770), (86, 90820), (95, 82216), (152, 51385), (172, 45410), (190, 41108), (215, 36328), (239, 32680), (344, 22705), (380, 20554), (430, 18164), (478, 16340), (760, 10277), (817, 9560), (860, 9082), (956, 8170), (1195, 6536), (1634, 4780), (1720, 4541), (1912, 4085), (2390, 3268)]