79668640

素因数分解:

$2^5\times 5^1\times {\mathrm{497929}}^1$

素因数の和:497944

約数の個数: 24

約数和(自身を含む): 188217540

約数和(自身を除く): 108548900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 497929, 995858, 1991716, 2489645, 3983432, 4979290, 7966864, 9958580, 15933728, 19917160, 39834320, 79668640]

約数ペア:

[(1, 79668640), (2, 39834320), (4, 19917160), (5, 15933728), (8, 9958580), (10, 7966864), (16, 4979290), (20, 3983432), (32, 2489645), (40, 1991716), (80, 995858), (160, 497929)]