28770380

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{2659}}^1$

素因数の和:3209

約数の個数: 24

約数和(自身を含む): 60552240

約数和(自身を除く): 31781860

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2659, 2705, 5318, 5410, 10636, 10820, 13295, 26590, 53180, 1438519, 2877038, 5754076, 7192595, 14385190, 28770380]

約数ペア:

[(1, 28770380), (2, 14385190), (4, 7192595), (5, 5754076), (10, 2877038), (20, 1438519), (541, 53180), (1082, 26590), (2164, 13295), (2659, 10820), (2705, 10636), (5318, 5410)]