81155115

素因数分解:

$3^4\times 5^1\times {\mathrm{200383}}^1$

素因数の和:200400

約数の個数: 20

約数和(自身を含む): 145478784

約数和(自身を除く): 64323669

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 200383, 601149, 1001915, 1803447, 3005745, 5410341, 9017235, 16231023, 27051705, 81155115]

約数ペア:

[(1, 81155115), (3, 27051705), (5, 16231023), (9, 9017235), (15, 5410341), (27, 3005745), (45, 1803447), (81, 1001915), (135, 601149), (405, 200383)]