28745385

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 51576000

約数和(自身を除く): 22830615

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 289, 323, 349, 867, 969, 1047, 1445, 1615, 1745, 4335, 4845, 5235, 5491, 5933, 6631, 16473, 17799, 19893, 27455, 29665, 33155, 82365, 88995, 99465, 100861, 112727, 302583, 338181, 504305, 563635, 1512915, 1690905, 1916359, 5749077, 9581795, 28745385]

約数ペア:

[(1, 28745385), (3, 9581795), (5, 5749077), (15, 1916359), (17, 1690905), (19, 1512915), (51, 563635), (57, 504305), (85, 338181), (95, 302583), (255, 112727), (285, 100861), (289, 99465), (323, 88995), (349, 82365), (867, 33155), (969, 29665), (1047, 27455), (1445, 19893), (1615, 17799), (1745, 16473), (4335, 6631), (4845, 5933), (5235, 5491)]