81280008

素因数分解:

$2^3\times 3^2\times {\mathrm{1128889}}^1$

素因数の和:1128901

約数の個数: 24

約数和(自身を含む): 220133550

約数和(自身を除く): 138853542

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1128889, 2257778, 3386667, 4515556, 6773334, 9031112, 10160001, 13546668, 20320002, 27093336, 40640004, 81280008]

約数ペア:

[(1, 81280008), (2, 40640004), (3, 27093336), (4, 20320002), (6, 13546668), (8, 10160001), (9, 9031112), (12, 6773334), (18, 4515556), (24, 3386667), (36, 2257778), (72, 1128889)]