20178390856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^2\times {\mathrm{1213}}^1$

素因数の和:1443

約数の個数: 96

約数和(自身を含む): 43626862440

約数和(自身を除く): 23448471584

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 97, 104, 136, 194, 221, 388, 442, 776, 884, 1213, 1261, 1649, 1768, 2426, 2522, 3298, 4852, 5044, 6596, 9409, 9704, 10088, 13192, 15769, 18818, 20621, 21437, 31538, 37636, 41242, 42874, 63076, 75272, 82484, 85748, 117661, 122317, 126152, 159953, 164968, 171496, 235322, 244634, 268073, 319906, 470644, 489268, 536146, 639812, 941288, 978536, 1072292, 1279624, 1529593, 2000237, 2079389, 2144584, 3059186, 4000474, 4158778, 6118372, 8000948, 8317556, 11413117, 12236744, 16001896, 16635112, 22826234, 26003081, 45652468, 52006162, 91304936, 104012324, 148370521, 194022989, 208024648, 296741042, 388045978, 593482084, 776091956, 1186964168, 1552183912, 2522298857, 5044597714, 10089195428, 20178390856]

約数ペア:

[(1, 20178390856), (2, 10089195428), (4, 5044597714), (8, 2522298857), (13, 1552183912), (17, 1186964168), (26, 776091956), (34, 593482084), (52, 388045978), (68, 296741042), (97, 208024648), (104, 194022989), (136, 148370521), (194, 104012324), (221, 91304936), (388, 52006162), (442, 45652468), (776, 26003081), (884, 22826234), (1213, 16635112), (1261, 16001896), (1649, 12236744), (1768, 11413117), (2426, 8317556), (2522, 8000948), (3298, 6118372), (4852, 4158778), (5044, 4000474), (6596, 3059186), (9409, 2144584), (9704, 2079389), (10088, 2000237), (13192, 1529593), (15769, 1279624), (18818, 1072292), (20621, 978536), (21437, 941288), (31538, 639812), (37636, 536146), (41242, 489268), (42874, 470644), (63076, 319906), (75272, 268073), (82484, 244634), (85748, 235322), (117661, 171496), (122317, 164968), (126152, 159953)]