204512140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{21803}}^1$

素因数の和:21886

約数の個数: 48

約数和(自身を含む): 498177792

約数和(自身を除く): 293665652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 4690, 9380, 21803, 43606, 87212, 109015, 152621, 218030, 305242, 436060, 610484, 763105, 1460801, 1526210, 2921602, 3052420, 5843204, 7304005, 10225607, 14608010, 20451214, 29216020, 40902428, 51128035, 102256070, 204512140]

約数ペア:

[(1, 204512140), (2, 102256070), (4, 51128035), (5, 40902428), (7, 29216020), (10, 20451214), (14, 14608010), (20, 10225607), (28, 7304005), (35, 5843204), (67, 3052420), (70, 2921602), (134, 1526210), (140, 1460801), (268, 763105), (335, 610484), (469, 436060), (670, 305242), (938, 218030), (1340, 152621), (1876, 109015), (2345, 87212), (4690, 43606), (9380, 21803)]