8387260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{431}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 20321280

約数和(自身を除く): 11934020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 431, 556, 695, 862, 973, 1390, 1724, 1946, 2155, 2780, 3017, 3892, 4310, 4865, 6034, 8620, 9730, 12068, 15085, 19460, 30170, 59909, 60340, 119818, 239636, 299545, 419363, 599090, 838726, 1198180, 1677452, 2096815, 4193630, 8387260]

約数ペア:

[(1, 8387260), (2, 4193630), (4, 2096815), (5, 1677452), (7, 1198180), (10, 838726), (14, 599090), (20, 419363), (28, 299545), (35, 239636), (70, 119818), (139, 60340), (140, 59909), (278, 30170), (431, 19460), (556, 15085), (695, 12068), (862, 9730), (973, 8620), (1390, 6034), (1724, 4865), (1946, 4310), (2155, 3892), (2780, 3017)]