81728.000000

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 1676220

約数和(自身を除く): 1102452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 613, 936, 1226, 1839, 2452, 3678, 4904, 5517, 7356, 7969, 11034, 14712, 15938, 22068, 23907, 31876, 44136, 47814, 63752, 71721, 95628, 143442, 191256, 286884, 573768]

約数ペア:

[(1, 573768), (2, 286884), (3, 191256), (4, 143442), (6, 95628), (8, 71721), (9, 63752), (12, 47814), (13, 44136), (18, 31876), (24, 23907), (26, 22068), (36, 15938), (39, 14712), (52, 11034), (72, 7969), (78, 7356), (104, 5517), (117, 4904), (156, 3678), (234, 2452), (312, 1839), (468, 1226), (613, 936)]