78830660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{419}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 173577600

約数和(自身を除く): 94746940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 409, 419, 460, 818, 838, 1636, 1676, 2045, 2095, 4090, 4190, 8180, 8380, 9407, 9637, 18814, 19274, 37628, 38548, 47035, 48185, 94070, 96370, 171371, 188140, 192740, 342742, 685484, 856855, 1713710, 3427420, 3941533, 7883066, 15766132, 19707665, 39415330, 78830660]

約数ペア:

[(1, 78830660), (2, 39415330), (4, 19707665), (5, 15766132), (10, 7883066), (20, 3941533), (23, 3427420), (46, 1713710), (92, 856855), (115, 685484), (230, 342742), (409, 192740), (419, 188140), (460, 171371), (818, 96370), (838, 94070), (1636, 48185), (1676, 47035), (2045, 38548), (2095, 37628), (4090, 19274), (4190, 18814), (8180, 9637), (8380, 9407)]