81578856

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 230400000

約数和(自身を除く): 148821144

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 29, 31, 38, 57, 58, 62, 76, 87, 93, 114, 116, 124, 152, 174, 186, 199, 228, 232, 248, 348, 372, 398, 456, 551, 589, 597, 696, 744, 796, 899, 1102, 1178, 1194, 1592, 1653, 1767, 1798, 2204, 2356, 2388, 2697, 3306, 3534, 3596, 3781, 4408, 4712, 4776, 5394, 5771, 6169, 6612, 7068, 7192, 7562, 10788, 11343, 11542, 12338, 13224, 14136, 15124, 17081, 17313, 18507, 21576, 22686, 23084, 24676, 30248, 34162, 34626, 37014, 45372, 46168, 49352, 51243, 68324, 69252, 74028, 90744, 102486, 109649, 117211, 136648, 138504, 148056, 178901, 204972, 219298, 234422, 328947, 351633, 357802, 409944, 438596, 468844, 536703, 657894, 703266, 715604, 877192, 937688, 1073406, 1315788, 1406532, 1431208, 2146812, 2631576, 2813064, 3399119, 4293624, 6798238, 10197357, 13596476, 20394714, 27192952, 40789428, 81578856]

約数ペア:

[(1, 81578856), (2, 40789428), (3, 27192952), (4, 20394714), (6, 13596476), (8, 10197357), (12, 6798238), (19, 4293624), (24, 3399119), (29, 2813064), (31, 2631576), (38, 2146812), (57, 1431208), (58, 1406532), (62, 1315788), (76, 1073406), (87, 937688), (93, 877192), (114, 715604), (116, 703266), (124, 657894), (152, 536703), (174, 468844), (186, 438596), (199, 409944), (228, 357802), (232, 351633), (248, 328947), (348, 234422), (372, 219298), (398, 204972), (456, 178901), (551, 148056), (589, 138504), (597, 136648), (696, 117211), (744, 109649), (796, 102486), (899, 90744), (1102, 74028), (1178, 69252), (1194, 68324), (1592, 51243), (1653, 49352), (1767, 46168), (1798, 45372), (2204, 37014), (2356, 34626), (2388, 34162), (2697, 30248), (3306, 24676), (3534, 23084), (3596, 22686), (3781, 21576), (4408, 18507), (4712, 17313), (4776, 17081), (5394, 15124), (5771, 14136), (6169, 13224), (6612, 12338), (7068, 11542), (7192, 11343), (7562, 10788)]