81756164

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 173107200

約数和(自身を除く): 91351036

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 239, 266, 478, 532, 643, 956, 1286, 1673, 2572, 3346, 4501, 4541, 6692, 9002, 9082, 12217, 18004, 18164, 24434, 31787, 48868, 63574, 85519, 127148, 153677, 171038, 307354, 342076, 614708, 1075739, 2151478, 2919863, 4302956, 5839726, 11679452, 20439041, 40878082, 81756164]

約数ペア:

[(1, 81756164), (2, 40878082), (4, 20439041), (7, 11679452), (14, 5839726), (19, 4302956), (28, 2919863), (38, 2151478), (76, 1075739), (133, 614708), (239, 342076), (266, 307354), (478, 171038), (532, 153677), (643, 127148), (956, 85519), (1286, 63574), (1673, 48868), (2572, 31787), (3346, 24434), (4501, 18164), (4541, 18004), (6692, 12217), (9002, 9082)]