1279110820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4919657}}^1$

素因数の和:4919679

約数の個数: 24

約数和(自身を含む): 2892758904

約数和(自身を除く): 1613648084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4919657, 9839314, 19678628, 24598285, 49196570, 63955541, 98393140, 127911082, 255822164, 319777705, 639555410, 1279110820]

約数ペア:

[(1, 1279110820), (2, 639555410), (4, 319777705), (5, 255822164), (10, 127911082), (13, 98393140), (20, 63955541), (26, 49196570), (52, 24598285), (65, 19678628), (130, 9839314), (260, 4919657)]