8426180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 20415360

約数和(自身を除く): 11989180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 433, 556, 695, 866, 973, 1390, 1732, 1946, 2165, 2780, 3031, 3892, 4330, 4865, 6062, 8660, 9730, 12124, 15155, 19460, 30310, 60187, 60620, 120374, 240748, 300935, 421309, 601870, 842618, 1203740, 1685236, 2106545, 4213090, 8426180]

約数ペア:

[(1, 8426180), (2, 4213090), (4, 2106545), (5, 1685236), (7, 1203740), (10, 842618), (14, 601870), (20, 421309), (28, 300935), (35, 240748), (70, 120374), (139, 60620), (140, 60187), (278, 30310), (433, 19460), (556, 15155), (695, 12124), (866, 9730), (973, 8660), (1390, 6062), (1732, 4865), (1946, 4330), (2165, 3892), (2780, 3031)]