81617792

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 170903040

約数和(自身を除く): 89285248

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 67, 124, 128, 134, 248, 268, 307, 496, 536, 614, 992, 1072, 1228, 1984, 2077, 2144, 2456, 3968, 4154, 4288, 4912, 8308, 8576, 9517, 9824, 16616, 19034, 19648, 20569, 33232, 38068, 39296, 41138, 66464, 76136, 82276, 132928, 152272, 164552, 265856, 304544, 329104, 609088, 637639, 658208, 1218176, 1275278, 1316416, 2550556, 2632832, 5101112, 10202224, 20404448, 40808896, 81617792]

約数ペア:

[(1, 81617792), (2, 40808896), (4, 20404448), (8, 10202224), (16, 5101112), (31, 2632832), (32, 2550556), (62, 1316416), (64, 1275278), (67, 1218176), (124, 658208), (128, 637639), (134, 609088), (248, 329104), (268, 304544), (307, 265856), (496, 164552), (536, 152272), (614, 132928), (992, 82276), (1072, 76136), (1228, 66464), (1984, 41138), (2077, 39296), (2144, 38068), (2456, 33232), (3968, 20569), (4154, 19648), (4288, 19034), (4912, 16616), (8308, 9824), (8576, 9517)]