89891285

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 121651200

約数和(自身を除く): 31759915

約数列:

[1, 5, 11, 43, 55, 191, 199, 215, 473, 955, 995, 2101, 2189, 2365, 8213, 8557, 10505, 10945, 38009, 41065, 42785, 90343, 94127, 190045, 418099, 451715, 470635, 1634387, 2090495, 8171935, 17978257, 89891285]

約数ペア:

[(1, 89891285), (5, 17978257), (11, 8171935), (43, 2090495), (55, 1634387), (191, 470635), (199, 451715), (215, 418099), (473, 190045), (955, 94127), (995, 90343), (2101, 42785), (2189, 41065), (2365, 38009), (8213, 10945), (8557, 10505)]