850040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 1944000

約数和(自身を除く): 1093960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 269, 316, 395, 538, 632, 790, 1076, 1345, 1580, 2152, 2690, 3160, 5380, 10760, 21251, 42502, 85004, 106255, 170008, 212510, 425020, 850040]

約数ペア:

[(1, 850040), (2, 425020), (4, 212510), (5, 170008), (8, 106255), (10, 85004), (20, 42502), (40, 21251), (79, 10760), (158, 5380), (269, 3160), (316, 2690), (395, 2152), (538, 1580), (632, 1345), (790, 1076)]