72422740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{278549}}^1$

素因数の和:278571

約数の個数: 24

約数和(自身を含む): 163787400

約数和(自身を除く): 91364660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 278549, 557098, 1114196, 1392745, 2785490, 3621137, 5570980, 7242274, 14484548, 18105685, 36211370, 72422740]

約数ペア:

[(1, 72422740), (2, 36211370), (4, 18105685), (5, 14484548), (10, 7242274), (13, 5570980), (20, 3621137), (26, 2785490), (52, 1392745), (65, 1114196), (130, 557098), (260, 278549)]