80991484

素因数分解:

$2^2\times 7^1\times {\mathrm{1447}}^1\times {\mathrm{1999}}^1$

素因数の和:3457

約数の個数: 24

約数和(自身を含む): 162176000

約数和(自身を除く): 81184516

約数列:

[1, 2, 4, 7, 14, 28, 1447, 1999, 2894, 3998, 5788, 7996, 10129, 13993, 20258, 27986, 40516, 55972, 2892553, 5785106, 11570212, 20247871, 40495742, 80991484]

約数ペア:

[(1, 80991484), (2, 40495742), (4, 20247871), (7, 11570212), (14, 5785106), (28, 2892553), (1447, 55972), (1999, 40516), (2894, 27986), (3998, 20258), (5788, 13993), (7996, 10129)]