80736112

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 161061120

約数和(自身を除く): 80325008

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 239, 344, 478, 491, 688, 956, 982, 1912, 1964, 3824, 3928, 7856, 10277, 20554, 21113, 41108, 42226, 82216, 84452, 117349, 164432, 168904, 234698, 337808, 469396, 938792, 1877584, 5046007, 10092014, 20184028, 40368056, 80736112]

約数ペア:

[(1, 80736112), (2, 40368056), (4, 20184028), (8, 10092014), (16, 5046007), (43, 1877584), (86, 938792), (172, 469396), (239, 337808), (344, 234698), (478, 168904), (491, 164432), (688, 117349), (956, 84452), (982, 82216), (1912, 42226), (1964, 41108), (3824, 21113), (3928, 20554), (7856, 10277)]