15550000

素因数分解:

$2^4\times 5^5\times {\mathrm{311}}^1$

素因数の和:344

約数の個数: 60

約数和(自身を含む): 37778832

約数和(自身を除く): 22228832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 311, 400, 500, 622, 625, 1000, 1244, 1250, 1555, 2000, 2488, 2500, 3110, 3125, 4976, 5000, 6220, 6250, 7775, 10000, 12440, 12500, 15550, 24880, 25000, 31100, 38875, 50000, 62200, 77750, 124400, 155500, 194375, 311000, 388750, 622000, 777500, 971875, 1555000, 1943750, 3110000, 3887500, 7775000, 15550000]

約数ペア:

[(1, 15550000), (2, 7775000), (4, 3887500), (5, 3110000), (8, 1943750), (10, 1555000), (16, 971875), (20, 777500), (25, 622000), (40, 388750), (50, 311000), (80, 194375), (100, 155500), (125, 124400), (200, 77750), (250, 62200), (311, 50000), (400, 38875), (500, 31100), (622, 25000), (625, 24880), (1000, 15550), (1244, 12500), (1250, 12440), (1555, 10000), (2000, 7775), (2488, 6250), (2500, 6220), (3110, 5000), (3125, 4976)]