20480590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157543}}^1$

素因数の和:157563

約数の個数: 16

約数和(自身を含む): 39701088

約数和(自身を除く): 19220498

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157543, 315086, 787715, 1575430, 2048059, 4096118, 10240295, 20480590]

約数ペア:

[(1, 20480590), (2, 10240295), (5, 4096118), (10, 2048059), (13, 1575430), (26, 787715), (65, 315086), (130, 157543)]