257181796

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{78697}}^1$

素因数の和:78763

約数の個数: 24

約数和(自身を含む): 484779680

約数和(自身を除く): 227597884

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 78697, 157394, 314788, 1495243, 2990486, 3383971, 5980972, 6767942, 13535884, 64295449, 128590898, 257181796]

約数ペア:

[(1, 257181796), (2, 128590898), (4, 64295449), (19, 13535884), (38, 6767942), (43, 5980972), (76, 3383971), (86, 2990486), (172, 1495243), (817, 314788), (1634, 157394), (3268, 78697)]