19138520

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{859}}^1$

素因数の和:1427

約数の個数: 32

約数和(自身を含む): 43189200

約数和(自身を除く): 24050680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 859, 1114, 1718, 2228, 2785, 3436, 4295, 4456, 5570, 6872, 8590, 11140, 17180, 22280, 34360, 478463, 956926, 1913852, 2392315, 3827704, 4784630, 9569260, 19138520]

約数ペア:

[(1, 19138520), (2, 9569260), (4, 4784630), (5, 3827704), (8, 2392315), (10, 1913852), (20, 956926), (40, 478463), (557, 34360), (859, 22280), (1114, 17180), (1718, 11140), (2228, 8590), (2785, 6872), (3436, 5570), (4295, 4456)]