131287380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{312589}}^1$

素因数の和:312608

約数の個数: 48

約数和(自身を含む): 420120960

約数和(自身を除く): 288833580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 312589, 625178, 937767, 1250356, 1562945, 1875534, 2188123, 3125890, 3751068, 4376246, 4688835, 6251780, 6564369, 8752492, 9377670, 10940615, 13128738, 18755340, 21881230, 26257476, 32821845, 43762460, 65643690, 131287380]

約数ペア:

[(1, 131287380), (2, 65643690), (3, 43762460), (4, 32821845), (5, 26257476), (6, 21881230), (7, 18755340), (10, 13128738), (12, 10940615), (14, 9377670), (15, 8752492), (20, 6564369), (21, 6251780), (28, 4688835), (30, 4376246), (35, 3751068), (42, 3125890), (60, 2188123), (70, 1875534), (84, 1562945), (105, 1250356), (140, 937767), (210, 625178), (420, 312589)]