8500400

素因数分解:

$2^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:366

約数の個数: 60

約数和(自身を含む): 20757600

約数和(自身を除く): 12257200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 79, 80, 100, 158, 200, 269, 316, 395, 400, 538, 632, 790, 1076, 1264, 1345, 1580, 1975, 2152, 2690, 3160, 3950, 4304, 5380, 6320, 6725, 7900, 10760, 13450, 15800, 21251, 21520, 26900, 31600, 42502, 53800, 85004, 106255, 107600, 170008, 212510, 340016, 425020, 531275, 850040, 1062550, 1700080, 2125100, 4250200, 8500400]

約数ペア:

[(1, 8500400), (2, 4250200), (4, 2125100), (5, 1700080), (8, 1062550), (10, 850040), (16, 531275), (20, 425020), (25, 340016), (40, 212510), (50, 170008), (79, 107600), (80, 106255), (100, 85004), (158, 53800), (200, 42502), (269, 31600), (316, 26900), (395, 21520), (400, 21251), (538, 15800), (632, 13450), (790, 10760), (1076, 7900), (1264, 6725), (1345, 6320), (1580, 5380), (1975, 4304), (2152, 3950), (2690, 3160)]