78560840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{37057}}^1$

素因数の和:37121

約数の個数: 32

約数和(自身を含む): 180101880

約数和(自身を除く): 101541040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 37057, 74114, 148228, 185285, 296456, 370570, 741140, 1482280, 1964021, 3928042, 7856084, 9820105, 15712168, 19640210, 39280420, 78560840]

約数ペア:

[(1, 78560840), (2, 39280420), (4, 19640210), (5, 15712168), (8, 9820105), (10, 7856084), (20, 3928042), (40, 1964021), (53, 1482280), (106, 741140), (212, 370570), (265, 296456), (424, 185285), (530, 148228), (1060, 74114), (2120, 37057)]