78034780

素因数分解:

$2^2\times 5^1\times {\mathrm{1451}}^1\times {\mathrm{2689}}^1$

素因数の和:4149

約数の個数: 24

約数和(自身を含む): 164046960

約数和(自身を除く): 86012180

約数列:

[1, 2, 4, 5, 10, 20, 1451, 2689, 2902, 5378, 5804, 7255, 10756, 13445, 14510, 26890, 29020, 53780, 3901739, 7803478, 15606956, 19508695, 39017390, 78034780]

約数ペア:

[(1, 78034780), (2, 39017390), (4, 19508695), (5, 15606956), (10, 7803478), (20, 3901739), (1451, 53780), (2689, 29020), (2902, 26890), (5378, 14510), (5804, 13445), (7255, 10756)]