20180858890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25545391}}^1$

素因数の和:25545477

約数の個数: 16

約数和(自身を含む): 36785364480

約数和(自身を除く): 16604505590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25545391, 51090782, 127726955, 255453910, 2018085889, 4036171778, 10090429445, 20180858890]

約数ペア:

[(1, 20180858890), (2, 10090429445), (5, 4036171778), (10, 2018085889), (79, 255453910), (158, 127726955), (395, 51090782), (790, 25545391)]