66500440

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3191}}^1$

素因数の和:3723

約数の個数: 32

約数和(自身を含む): 149960160

約数和(自身を除く): 83459720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 3191, 4168, 5210, 6382, 10420, 12764, 15955, 20840, 25528, 31910, 63820, 127640, 1662511, 3325022, 6650044, 8312555, 13300088, 16625110, 33250220, 66500440]

約数ペア:

[(1, 66500440), (2, 33250220), (4, 16625110), (5, 13300088), (8, 8312555), (10, 6650044), (20, 3325022), (40, 1662511), (521, 127640), (1042, 63820), (2084, 31910), (2605, 25528), (3191, 20840), (4168, 15955), (5210, 12764), (6382, 10420)]