28720995

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{40739}}^1$

素因数の和:40794

約数の個数: 16

約数和(自身を含む): 46932480

約数和(自身を除く): 18211485

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 40739, 122217, 203695, 611085, 1914733, 5744199, 9573665, 28720995]

約数ペア:

[(1, 28720995), (3, 9573665), (5, 5744199), (15, 1914733), (47, 611085), (141, 203695), (235, 122217), (705, 40739)]