28940000

素因数分解:

$2^5\times 5^4\times {\mathrm{1447}}^1$

素因数の和:1477

約数の個数: 60

約数和(自身を含む): 71245944

約数和(自身を除く): 42305944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1447, 2000, 2500, 2894, 4000, 5000, 5788, 7235, 10000, 11576, 14470, 20000, 23152, 28940, 36175, 46304, 57880, 72350, 115760, 144700, 180875, 231520, 289400, 361750, 578800, 723500, 904375, 1157600, 1447000, 1808750, 2894000, 3617500, 5788000, 7235000, 14470000, 28940000]

約数ペア:

[(1, 28940000), (2, 14470000), (4, 7235000), (5, 5788000), (8, 3617500), (10, 2894000), (16, 1808750), (20, 1447000), (25, 1157600), (32, 904375), (40, 723500), (50, 578800), (80, 361750), (100, 289400), (125, 231520), (160, 180875), (200, 144700), (250, 115760), (400, 72350), (500, 57880), (625, 46304), (800, 36175), (1000, 28940), (1250, 23152), (1447, 20000), (2000, 14470), (2500, 11576), (2894, 10000), (4000, 7235), (5000, 5788)]