15440000

素因数分解:

$2^7\times 5^4\times {\mathrm{193}}^1$

素因数の和:227

約数の個数: 80

約数和(自身を含む): 38636070

約数和(自身を除く): 23196070

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 193, 200, 250, 320, 386, 400, 500, 625, 640, 772, 800, 965, 1000, 1250, 1544, 1600, 1930, 2000, 2500, 3088, 3200, 3860, 4000, 4825, 5000, 6176, 7720, 8000, 9650, 10000, 12352, 15440, 16000, 19300, 20000, 24125, 24704, 30880, 38600, 40000, 48250, 61760, 77200, 80000, 96500, 120625, 123520, 154400, 193000, 241250, 308800, 386000, 482500, 617600, 772000, 965000, 1544000, 1930000, 3088000, 3860000, 7720000, 15440000]

約数ペア:

[(1, 15440000), (2, 7720000), (4, 3860000), (5, 3088000), (8, 1930000), (10, 1544000), (16, 965000), (20, 772000), (25, 617600), (32, 482500), (40, 386000), (50, 308800), (64, 241250), (80, 193000), (100, 154400), (125, 123520), (128, 120625), (160, 96500), (193, 80000), (200, 77200), (250, 61760), (320, 48250), (386, 40000), (400, 38600), (500, 30880), (625, 24704), (640, 24125), (772, 20000), (800, 19300), (965, 16000), (1000, 15440), (1250, 12352), (1544, 10000), (1600, 9650), (1930, 8000), (2000, 7720), (2500, 6176), (3088, 5000), (3200, 4825), (3860, 4000)]