209898040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12893}}^1$

素因数の和:12952

約数の個数: 64

約数和(自身を含む): 529169760

約数和(自身を除く): 319271720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 8140, 12893, 16280, 25786, 51572, 64465, 103144, 128930, 141823, 257860, 283646, 477041, 515720, 567292, 709115, 954082, 1134584, 1418230, 1908164, 2385205, 2836460, 3816328, 4770410, 5247451, 5672920, 9540820, 10494902, 19081640, 20989804, 26237255, 41979608, 52474510, 104949020, 209898040]

約数ペア:

[(1, 209898040), (2, 104949020), (4, 52474510), (5, 41979608), (8, 26237255), (10, 20989804), (11, 19081640), (20, 10494902), (22, 9540820), (37, 5672920), (40, 5247451), (44, 4770410), (55, 3816328), (74, 2836460), (88, 2385205), (110, 1908164), (148, 1418230), (185, 1134584), (220, 954082), (296, 709115), (370, 567292), (407, 515720), (440, 477041), (740, 283646), (814, 257860), (1480, 141823), (1628, 128930), (2035, 103144), (3256, 64465), (4070, 51572), (8140, 25786), (12893, 16280)]