257584245

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{8389}}^1$

素因数の和:8509

約数の個数: 32

約数和(自身を含む): 434937600

約数和(自身を除く): 177353355

約数列:

[1, 3, 5, 15, 23, 69, 89, 115, 267, 345, 445, 1335, 2047, 6141, 8389, 10235, 25167, 30705, 41945, 125835, 192947, 578841, 746621, 964735, 2239863, 2894205, 3733105, 11199315, 17172283, 51516849, 85861415, 257584245]

約数ペア:

[(1, 257584245), (3, 85861415), (5, 51516849), (15, 17172283), (23, 11199315), (69, 3733105), (89, 2894205), (115, 2239863), (267, 964735), (345, 746621), (445, 578841), (1335, 192947), (2047, 125835), (6141, 41945), (8389, 30705), (10235, 25167)]