81019160

素因数分解:

$2^3\times 5^1\times {\mathrm{2025479}}^1$

素因数の和:2025490

約数の個数: 16

約数和(自身を含む): 182293200

約数和(自身を除く): 101274040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2025479, 4050958, 8101916, 10127395, 16203832, 20254790, 40509580, 81019160]

約数ペア:

[(1, 81019160), (2, 40509580), (4, 20254790), (5, 16203832), (8, 10127395), (10, 8101916), (20, 4050958), (40, 2025479)]