16504240

素因数分解:

$2^4\times 5^1\times {\mathrm{206303}}^1$

素因数の和:206316

約数の個数: 20

約数和(自身を含む): 38372544

約数和(自身を除く): 21868304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 206303, 412606, 825212, 1031515, 1650424, 2063030, 3300848, 4126060, 8252120, 16504240]

約数ペア:

[(1, 16504240), (2, 8252120), (4, 4126060), (5, 3300848), (8, 2063030), (10, 1650424), (16, 1031515), (20, 825212), (40, 412606), (80, 206303)]