81590704

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392263}}^1$

素因数の和:392284

約数の個数: 20

約数和(自身を含む): 170242576

約数和(自身を除く): 88651872

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392263, 784526, 1569052, 3138104, 5099419, 6276208, 10198838, 20397676, 40795352, 81590704]

約数ペア:

[(1, 81590704), (2, 40795352), (4, 20397676), (8, 10198838), (13, 6276208), (16, 5099419), (26, 3138104), (52, 1569052), (104, 784526), (208, 392263)]