28716695

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 43776000

約数和(自身を除く): 15059305

約数列:

[1, 5, 7, 19, 31, 35, 49, 95, 133, 155, 199, 217, 245, 589, 665, 931, 995, 1085, 1393, 1519, 2945, 3781, 4123, 4655, 6169, 6965, 7595, 9751, 18905, 20615, 26467, 28861, 30845, 43183, 48755, 117211, 132335, 144305, 185269, 215915, 302281, 586055, 820477, 926345, 1511405, 4102385, 5743339, 28716695]

約数ペア:

[(1, 28716695), (5, 5743339), (7, 4102385), (19, 1511405), (31, 926345), (35, 820477), (49, 586055), (95, 302281), (133, 215915), (155, 185269), (199, 144305), (217, 132335), (245, 117211), (589, 48755), (665, 43183), (931, 30845), (995, 28861), (1085, 26467), (1393, 20615), (1519, 18905), (2945, 9751), (3781, 7595), (4123, 6965), (4655, 6169)]