28680615

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12497}}^1$

素因数の和:12528

約数の個数: 32

約数和(自身を含む): 53991360

約数和(自身を除く): 25310745

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 12497, 37491, 62485, 112473, 187455, 212449, 337419, 562365, 637347, 1062245, 1687095, 1912041, 3186735, 5736123, 9560205, 28680615]

約数ペア:

[(1, 28680615), (3, 9560205), (5, 5736123), (9, 3186735), (15, 1912041), (17, 1687095), (27, 1062245), (45, 637347), (51, 562365), (85, 337419), (135, 212449), (153, 187455), (255, 112473), (459, 62485), (765, 37491), (2295, 12497)]