540080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:213

約数の個数: 40

約数和(自身を含む): 1293072

約数和(自身を除く): 752992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 157, 172, 215, 314, 344, 430, 628, 688, 785, 860, 1256, 1570, 1720, 2512, 3140, 3440, 6280, 6751, 12560, 13502, 27004, 33755, 54008, 67510, 108016, 135020, 270040, 540080]

約数ペア:

[(1, 540080), (2, 270040), (4, 135020), (5, 108016), (8, 67510), (10, 54008), (16, 33755), (20, 27004), (40, 13502), (43, 12560), (80, 6751), (86, 6280), (157, 3440), (172, 3140), (215, 2512), (314, 1720), (344, 1570), (430, 1256), (628, 860), (688, 785)]