213721480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{3041}}^1$

素因数の和:3310

約数の個数: 64

約数和(自身を含む): 551940480

約数和(自身を除く): 338219000

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, 3041, 3514, 5020, 6082, 7028, 8785, 10040, 12164, 14056, 15205, 17570, 21287, 24328, 30410, 35140, 42574, 60820, 70280, 85148, 106435, 121640, 170296, 212870, 425740, 763291, 851480, 1526582, 3053164, 3816455, 5343037, 6106328, 7632910, 10686074, 15265820, 21372148, 26715185, 30531640, 42744296, 53430370, 106860740, 213721480]

約数ペア:

[(1, 213721480), (2, 106860740), (4, 53430370), (5, 42744296), (7, 30531640), (8, 26715185), (10, 21372148), (14, 15265820), (20, 10686074), (28, 7632910), (35, 6106328), (40, 5343037), (56, 3816455), (70, 3053164), (140, 1526582), (251, 851480), (280, 763291), (502, 425740), (1004, 212870), (1255, 170296), (1757, 121640), (2008, 106435), (2510, 85148), (3041, 70280), (3514, 60820), (5020, 42574), (6082, 35140), (7028, 30410), (8785, 24328), (10040, 21287), (12164, 17570), (14056, 15205)]