28411005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 54632448

約数和(自身を除く): 26221443

約数列:

[1, 3, 5, 7, 15, 21, 35, 37, 71, 103, 105, 111, 185, 213, 259, 309, 355, 497, 515, 555, 721, 777, 1065, 1295, 1491, 1545, 2163, 2485, 2627, 3605, 3811, 3885, 7313, 7455, 7881, 10815, 11433, 13135, 18389, 19055, 21939, 26677, 36565, 39405, 51191, 55167, 57165, 80031, 91945, 109695, 133385, 153573, 255955, 270581, 275835, 400155, 767865, 811743, 1352905, 1894067, 4058715, 5682201, 9470335, 28411005]

約数ペア:

[(1, 28411005), (3, 9470335), (5, 5682201), (7, 4058715), (15, 1894067), (21, 1352905), (35, 811743), (37, 767865), (71, 400155), (103, 275835), (105, 270581), (111, 255955), (185, 153573), (213, 133385), (259, 109695), (309, 91945), (355, 80031), (497, 57165), (515, 55167), (555, 51191), (721, 39405), (777, 36565), (1065, 26677), (1295, 21939), (1491, 19055), (1545, 18389), (2163, 13135), (2485, 11433), (2627, 10815), (3605, 7881), (3811, 7455), (3885, 7313)]