40908640

素因数分解:

$2^5\times 5^1\times {\mathrm{255679}}^1$

素因数の和:255694

約数の個数: 24

約数和(自身を含む): 96647040

約数和(自身を除く): 55738400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 255679, 511358, 1022716, 1278395, 2045432, 2556790, 4090864, 5113580, 8181728, 10227160, 20454320, 40908640]

約数ペア:

[(1, 40908640), (2, 20454320), (4, 10227160), (5, 8181728), (8, 5113580), (10, 4090864), (16, 2556790), (20, 2045432), (32, 1278395), (40, 1022716), (80, 511358), (160, 255679)]