81374852

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 167216616

約数和(自身を除く): 85841764

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 73, 97, 146, 169, 194, 221, 292, 338, 388, 442, 676, 884, 949, 1241, 1261, 1649, 1898, 2482, 2522, 2873, 3298, 3796, 4964, 5044, 5746, 6596, 7081, 11492, 12337, 14162, 16133, 16393, 21437, 24674, 28324, 32266, 32786, 42874, 49348, 64532, 65572, 85748, 92053, 120377, 184106, 209729, 240754, 278681, 368212, 419458, 481508, 557362, 838916, 1114724, 1196689, 1564901, 2393378, 3129802, 4786756, 6259604, 20343713, 40687426, 81374852]

約数ペア:

[(1, 81374852), (2, 40687426), (4, 20343713), (13, 6259604), (17, 4786756), (26, 3129802), (34, 2393378), (52, 1564901), (68, 1196689), (73, 1114724), (97, 838916), (146, 557362), (169, 481508), (194, 419458), (221, 368212), (292, 278681), (338, 240754), (388, 209729), (442, 184106), (676, 120377), (884, 92053), (949, 85748), (1241, 65572), (1261, 64532), (1649, 49348), (1898, 42874), (2482, 32786), (2522, 32266), (2873, 28324), (3298, 24674), (3796, 21437), (4964, 16393), (5044, 16133), (5746, 14162), (6596, 12337), (7081, 11492)]