15743140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{809}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 38102400

約数和(自身を除く): 22359260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 809, 973, 1390, 1618, 1946, 2780, 3236, 3892, 4045, 4865, 5663, 8090, 9730, 11326, 16180, 19460, 22652, 28315, 56630, 112451, 113260, 224902, 449804, 562255, 787157, 1124510, 1574314, 2249020, 3148628, 3935785, 7871570, 15743140]

約数ペア:

[(1, 15743140), (2, 7871570), (4, 3935785), (5, 3148628), (7, 2249020), (10, 1574314), (14, 1124510), (20, 787157), (28, 562255), (35, 449804), (70, 224902), (139, 113260), (140, 112451), (278, 56630), (556, 28315), (695, 22652), (809, 19460), (973, 16180), (1390, 11326), (1618, 9730), (1946, 8090), (2780, 5663), (3236, 4865), (3892, 4045)]