20057570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{557}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 39091248

約数和(自身を除く): 19033678

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 277, 554, 557, 1114, 1385, 2770, 2785, 3601, 5570, 7202, 7241, 14482, 18005, 36010, 36205, 72410, 154289, 308578, 771445, 1542890, 2005757, 4011514, 10028785, 20057570]

約数ペア:

[(1, 20057570), (2, 10028785), (5, 4011514), (10, 2005757), (13, 1542890), (26, 771445), (65, 308578), (130, 154289), (277, 72410), (554, 36205), (557, 36010), (1114, 18005), (1385, 14482), (2770, 7241), (2785, 7202), (3601, 5570)]