387855

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:57

約数の個数: 48

約数和(自身を含む): 790560

約数和(自身を除く): 402705

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 85, 117, 135, 153, 169, 195, 221, 255, 351, 459, 507, 585, 663, 765, 845, 1105, 1521, 1755, 1989, 2295, 2535, 2873, 3315, 4563, 5967, 7605, 8619, 9945, 14365, 22815, 25857, 29835, 43095, 77571, 129285, 387855]

約数ペア:

[(1, 387855), (3, 129285), (5, 77571), (9, 43095), (13, 29835), (15, 25857), (17, 22815), (27, 14365), (39, 9945), (45, 8619), (51, 7605), (65, 5967), (85, 4563), (117, 3315), (135, 2873), (153, 2535), (169, 2295), (195, 1989), (221, 1755), (255, 1521), (351, 1105), (459, 845), (507, 765), (585, 663)]