140560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1$

素因数の和:271

約数の個数: 40

約数和(自身を含む): 374976

約数和(自身を除く): 234416

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 502, 560, 1004, 1255, 1757, 2008, 2510, 3514, 4016, 5020, 7028, 8785, 10040, 14056, 17570, 20080, 28112, 35140, 70280, 140560]

約数ペア:

[(1, 140560), (2, 70280), (4, 35140), (5, 28112), (7, 20080), (8, 17570), (10, 14056), (14, 10040), (16, 8785), (20, 7028), (28, 5020), (35, 4016), (40, 3514), (56, 2510), (70, 2008), (80, 1757), (112, 1255), (140, 1004), (251, 560), (280, 502)]