81654248

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 183506400

約数和(自身を除く): 101852152

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 43, 52, 62, 76, 86, 104, 124, 152, 172, 247, 248, 344, 403, 494, 559, 589, 806, 817, 961, 988, 1118, 1178, 1333, 1612, 1634, 1922, 1976, 2236, 2356, 2666, 3224, 3268, 3844, 4472, 4712, 5332, 6536, 7657, 7688, 10621, 10664, 12493, 15314, 17329, 18259, 21242, 24986, 25327, 30628, 34658, 36518, 41323, 42484, 49972, 50654, 61256, 69316, 73036, 82646, 84968, 99944, 101308, 138632, 146072, 165292, 202616, 237367, 329251, 330584, 474734, 537199, 658502, 785137, 949468, 1074398, 1317004, 1570274, 1898936, 2148796, 2634008, 3140548, 4297592, 6281096, 10206781, 20413562, 40827124, 81654248]

約数ペア:

[(1, 81654248), (2, 40827124), (4, 20413562), (8, 10206781), (13, 6281096), (19, 4297592), (26, 3140548), (31, 2634008), (38, 2148796), (43, 1898936), (52, 1570274), (62, 1317004), (76, 1074398), (86, 949468), (104, 785137), (124, 658502), (152, 537199), (172, 474734), (247, 330584), (248, 329251), (344, 237367), (403, 202616), (494, 165292), (559, 146072), (589, 138632), (806, 101308), (817, 99944), (961, 84968), (988, 82646), (1118, 73036), (1178, 69316), (1333, 61256), (1612, 50654), (1634, 49972), (1922, 42484), (1976, 41323), (2236, 36518), (2356, 34658), (2666, 30628), (3224, 25327), (3268, 24986), (3844, 21242), (4472, 18259), (4712, 17329), (5332, 15314), (6536, 12493), (7657, 10664), (7688, 10621)]