8640775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2417}}^1$

素因数の和:2451

約数の個数: 24

約数和(自身を含む): 12592944

約数和(自身を除く): 3952169

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 2417, 3575, 12085, 26587, 31421, 60425, 132935, 157105, 345631, 664675, 785525, 1728155, 8640775]

約数ペア:

[(1, 8640775), (5, 1728155), (11, 785525), (13, 664675), (25, 345631), (55, 157105), (65, 132935), (143, 60425), (275, 31421), (325, 26587), (715, 12085), (2417, 3575)]