17640280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^2$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 45542160

約数和(自身を除く): 27901880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 251, 280, 502, 1004, 1255, 1757, 2008, 2510, 3514, 5020, 7028, 8785, 10040, 14056, 17570, 35140, 63001, 70280, 126002, 252004, 315005, 441007, 504008, 630010, 882014, 1260020, 1764028, 2205035, 2520040, 3528056, 4410070, 8820140, 17640280]

約数ペア:

[(1, 17640280), (2, 8820140), (4, 4410070), (5, 3528056), (7, 2520040), (8, 2205035), (10, 1764028), (14, 1260020), (20, 882014), (28, 630010), (35, 504008), (40, 441007), (56, 315005), (70, 252004), (140, 126002), (251, 70280), (280, 63001), (502, 35140), (1004, 17570), (1255, 14056), (1757, 10040), (2008, 8785), (2510, 7028), (3514, 5020)]