28266225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:626

約数の個数: 48

約数和(自身を含む): 51371712

約数和(自身を除く): 23105487

約数列:

[1, 3, 5, 13, 15, 25, 39, 53, 65, 75, 159, 195, 265, 325, 547, 689, 795, 975, 1325, 1641, 2067, 2735, 3445, 3975, 7111, 8205, 10335, 13675, 17225, 21333, 28991, 35555, 41025, 51675, 86973, 106665, 144955, 177775, 376883, 434865, 533325, 724775, 1130649, 1884415, 2174325, 5653245, 9422075, 28266225]

約数ペア:

[(1, 28266225), (3, 9422075), (5, 5653245), (13, 2174325), (15, 1884415), (25, 1130649), (39, 724775), (53, 533325), (65, 434865), (75, 376883), (159, 177775), (195, 144955), (265, 106665), (325, 86973), (547, 51675), (689, 41025), (795, 35555), (975, 28991), (1325, 21333), (1641, 17225), (2067, 13675), (2735, 10335), (3445, 8205), (3975, 7111)]