66719680

素因数分解:

$2^6\times 5^1\times {\mathrm{208499}}^1$

素因数の和:208516

約数の個数: 28

約数和(自身を含む): 158877000

約数和(自身を除く): 92157320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 208499, 416998, 833996, 1042495, 1667992, 2084990, 3335984, 4169980, 6671968, 8339960, 13343936, 16679920, 33359840, 66719680]

約数ペア:

[(1, 66719680), (2, 33359840), (4, 16679920), (5, 13343936), (8, 8339960), (10, 6671968), (16, 4169980), (20, 3335984), (32, 2084990), (40, 1667992), (64, 1042495), (80, 833996), (160, 416998), (320, 208499)]