20617500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{2749}}^1$

素因数の和:2776

約数の個数: 60

約数和(自身を含む): 60137000

約数和(自身を除く): 39519500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 625, 750, 1250, 1500, 1875, 2500, 2749, 3750, 5498, 7500, 8247, 10996, 13745, 16494, 27490, 32988, 41235, 54980, 68725, 82470, 137450, 164940, 206175, 274900, 343625, 412350, 687250, 824700, 1030875, 1374500, 1718125, 2061750, 3436250, 4123500, 5154375, 6872500, 10308750, 20617500]

約数ペア:

[(1, 20617500), (2, 10308750), (3, 6872500), (4, 5154375), (5, 4123500), (6, 3436250), (10, 2061750), (12, 1718125), (15, 1374500), (20, 1030875), (25, 824700), (30, 687250), (50, 412350), (60, 343625), (75, 274900), (100, 206175), (125, 164940), (150, 137450), (250, 82470), (300, 68725), (375, 54980), (500, 41235), (625, 32988), (750, 27490), (1250, 16494), (1500, 13745), (1875, 10996), (2500, 8247), (2749, 7500), (3750, 5498)]