20625825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1087}}^1$

素因数の和:1134

約数の個数: 48

約数和(自身を含む): 38854656

約数和(自身を除く): 18228831

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1087, 1265, 1725, 3261, 3795, 5435, 6325, 11957, 16305, 18975, 25001, 27175, 35871, 59785, 75003, 81525, 125005, 179355, 275011, 298925, 375015, 625025, 825033, 896775, 1375055, 1875075, 4125165, 6875275, 20625825]

約数ペア:

[(1, 20625825), (3, 6875275), (5, 4125165), (11, 1875075), (15, 1375055), (23, 896775), (25, 825033), (33, 625025), (55, 375015), (69, 298925), (75, 275011), (115, 179355), (165, 125005), (253, 81525), (275, 75003), (345, 59785), (575, 35871), (759, 27175), (825, 25001), (1087, 18975), (1265, 16305), (1725, 11957), (3261, 6325), (3795, 5435)]