270040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 625680

約数和(自身を除く): 355640

約数列:

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

約数ペア:

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