8439640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19181}}^1$

素因数の和:19203

約数の個数: 32

約数和(自身を含む): 20716560

約数和(自身を除く): 12276920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 19181, 38362, 76724, 95905, 153448, 191810, 210991, 383620, 421982, 767240, 843964, 1054955, 1687928, 2109910, 4219820, 8439640]

約数ペア:

[(1, 8439640), (2, 4219820), (4, 2109910), (5, 1687928), (8, 1054955), (10, 843964), (11, 767240), (20, 421982), (22, 383620), (40, 210991), (44, 191810), (55, 153448), (88, 95905), (110, 76724), (220, 38362), (440, 19181)]