18784240

素因数分解:

$2^4\times 5^1\times {\mathrm{234803}}^1$

素因数の和:234816

約数の個数: 20

約数和(自身を含む): 43673544

約数和(自身を除く): 24889304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234803, 469606, 939212, 1174015, 1878424, 2348030, 3756848, 4696060, 9392120, 18784240]

約数ペア:

[(1, 18784240), (2, 9392120), (4, 4696060), (5, 3756848), (8, 2348030), (10, 1878424), (16, 1174015), (20, 939212), (40, 469606), (80, 234803)]