822160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:295

約数の個数: 40

約数和(自身を含む): 1964160

約数和(自身を除く): 1142000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 239, 344, 430, 478, 688, 860, 956, 1195, 1720, 1912, 2390, 3440, 3824, 4780, 9560, 10277, 19120, 20554, 41108, 51385, 82216, 102770, 164432, 205540, 411080, 822160]

約数ペア:

[(1, 822160), (2, 411080), (4, 205540), (5, 164432), (8, 102770), (10, 82216), (16, 51385), (20, 41108), (40, 20554), (43, 19120), (80, 10277), (86, 9560), (172, 4780), (215, 3824), (239, 3440), (344, 2390), (430, 1912), (478, 1720), (688, 1195), (860, 956)]