25214980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{463}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 60802560

約数和(自身を除く): 35587580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 463, 778, 926, 1556, 1852, 1945, 2315, 2723, 3241, 3890, 4630, 5446, 6482, 7780, 9260, 10892, 12964, 13615, 16205, 27230, 32410, 54460, 64820, 180107, 360214, 720428, 900535, 1260749, 1801070, 2521498, 3602140, 5042996, 6303745, 12607490, 25214980]

約数ペア:

[(1, 25214980), (2, 12607490), (4, 6303745), (5, 5042996), (7, 3602140), (10, 2521498), (14, 1801070), (20, 1260749), (28, 900535), (35, 720428), (70, 360214), (140, 180107), (389, 64820), (463, 54460), (778, 32410), (926, 27230), (1556, 16205), (1852, 13615), (1945, 12964), (2315, 10892), (2723, 9260), (3241, 7780), (3890, 6482), (4630, 5446)]