16990040

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1579}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 38394000

約数和(自身を除く): 21403960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 1579, 2152, 2690, 3158, 5380, 6316, 7895, 10760, 12632, 15790, 31580, 63160, 424751, 849502, 1699004, 2123755, 3398008, 4247510, 8495020, 16990040]

約数ペア:

[(1, 16990040), (2, 8495020), (4, 4247510), (5, 3398008), (8, 2123755), (10, 1699004), (20, 849502), (40, 424751), (269, 63160), (538, 31580), (1076, 15790), (1345, 12632), (1579, 10760), (2152, 7895), (2690, 6316), (3158, 5380)]