657923140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{33809}}^1$

素因数の和:33964

約数の個数: 48

約数和(自身を含む): 1590422400

約数和(自身を除く): 932499260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 33809, 67618, 135236, 169045, 236663, 338090, 473326, 676180, 946652, 1183315, 2366630, 4699451, 4733260, 9398902, 18797804, 23497255, 32896157, 46994510, 65792314, 93989020, 131584628, 164480785, 328961570, 657923140]

約数ペア:

[(1, 657923140), (2, 328961570), (4, 164480785), (5, 131584628), (7, 93989020), (10, 65792314), (14, 46994510), (20, 32896157), (28, 23497255), (35, 18797804), (70, 9398902), (139, 4733260), (140, 4699451), (278, 2366630), (556, 1183315), (695, 946652), (973, 676180), (1390, 473326), (1946, 338090), (2780, 236663), (3892, 169045), (4865, 135236), (9730, 67618), (19460, 33809)]