2781825

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1279}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 4761600

約数和(自身を除く): 1979775

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 1279, 2175, 3837, 6395, 19185, 31975, 37091, 95925, 111273, 185455, 556365, 927275, 2781825]

約数ペア:

[(1, 2781825), (3, 927275), (5, 556365), (15, 185455), (25, 111273), (29, 95925), (75, 37091), (87, 31975), (145, 19185), (435, 6395), (725, 3837), (1279, 2175)]