28264965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{557}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 48211200

約数和(自身を除く): 19946235

約数列:

[1, 3, 5, 15, 17, 51, 85, 199, 255, 557, 597, 995, 1671, 2785, 2985, 3383, 8355, 9469, 10149, 16915, 28407, 47345, 50745, 110843, 142035, 332529, 554215, 1662645, 1884331, 5652993, 9421655, 28264965]

約数ペア:

[(1, 28264965), (3, 9421655), (5, 5652993), (15, 1884331), (17, 1662645), (51, 554215), (85, 332529), (199, 142035), (255, 110843), (557, 50745), (597, 47345), (995, 28407), (1671, 16915), (2785, 10149), (2985, 9469), (3383, 8355)]