1277778710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1\times {\mathrm{8863}}^1$

素因数の和:9992

約数の個数: 32

約数和(自身を含む): 2479438080

約数和(自身を除く): 1201659370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1109, 2218, 5545, 8863, 11090, 14417, 17726, 28834, 44315, 72085, 88630, 115219, 144170, 230438, 576095, 1152190, 9829067, 19658134, 49145335, 98290670, 127777871, 255555742, 638889355, 1277778710]

約数ペア:

[(1, 1277778710), (2, 638889355), (5, 255555742), (10, 127777871), (13, 98290670), (26, 49145335), (65, 19658134), (130, 9829067), (1109, 1152190), (2218, 576095), (5545, 230438), (8863, 144170), (11090, 115219), (14417, 88630), (17726, 72085), (28834, 44315)]