81707296

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{643}}^1$

素因数の和:702

約数の個数: 72

約数和(自身を含む): 185495184

約数和(自身を除く): 103787888

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 76, 88, 152, 176, 209, 304, 352, 361, 418, 608, 643, 722, 836, 1286, 1444, 1672, 2572, 2888, 3344, 3971, 5144, 5776, 6688, 7073, 7942, 10288, 11552, 12217, 14146, 15884, 20576, 24434, 28292, 31768, 48868, 56584, 63536, 97736, 113168, 127072, 134387, 195472, 226336, 232123, 268774, 390944, 464246, 537548, 928492, 1075096, 1856984, 2150192, 2553353, 3713968, 4300384, 5106706, 7427936, 10213412, 20426824, 40853648, 81707296]

約数ペア:

[(1, 81707296), (2, 40853648), (4, 20426824), (8, 10213412), (11, 7427936), (16, 5106706), (19, 4300384), (22, 3713968), (32, 2553353), (38, 2150192), (44, 1856984), (76, 1075096), (88, 928492), (152, 537548), (176, 464246), (209, 390944), (304, 268774), (352, 232123), (361, 226336), (418, 195472), (608, 134387), (643, 127072), (722, 113168), (836, 97736), (1286, 63536), (1444, 56584), (1672, 48868), (2572, 31768), (2888, 28292), (3344, 24434), (3971, 20576), (5144, 15884), (5776, 14146), (6688, 12217), (7073, 11552), (7942, 10288)]