128676856

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{208891}}^1$

素因数の和:208915

約数の個数: 32

約数和(自身を含む): 300804480

約数和(自身を除く): 172127624

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 616, 208891, 417782, 835564, 1462237, 1671128, 2297801, 2924474, 4595602, 5848948, 9191204, 11697896, 16084607, 18382408, 32169214, 64338428, 128676856]

約数ペア:

[(1, 128676856), (2, 64338428), (4, 32169214), (7, 18382408), (8, 16084607), (11, 11697896), (14, 9191204), (22, 5848948), (28, 4595602), (44, 2924474), (56, 2297801), (77, 1671128), (88, 1462237), (154, 835564), (308, 417782), (616, 208891)]