12605000

素因数分解:

$2^3\times 5^4\times {\mathrm{2521}}^1$

素因数の和:2547

約数の個数: 40

約数和(自身を含む): 29545230

約数和(自身を除く): 16940230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 2521, 5000, 5042, 10084, 12605, 20168, 25210, 50420, 63025, 100840, 126050, 252100, 315125, 504200, 630250, 1260500, 1575625, 2521000, 3151250, 6302500, 12605000]

約数ペア:

[(1, 12605000), (2, 6302500), (4, 3151250), (5, 2521000), (8, 1575625), (10, 1260500), (20, 630250), (25, 504200), (40, 315125), (50, 252100), (100, 126050), (125, 100840), (200, 63025), (250, 50420), (500, 25210), (625, 20168), (1000, 12605), (1250, 10084), (2500, 5042), (2521, 5000)]