81432456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6827}}^1$

素因数の和:6914

約数の個数: 64

約数和(自身を含む): 235975680

約数和(自身を除く): 154543224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 142, 168, 213, 284, 426, 497, 568, 852, 994, 1491, 1704, 1988, 2982, 3976, 5964, 6827, 11928, 13654, 20481, 27308, 40962, 47789, 54616, 81924, 95578, 143367, 163848, 191156, 286734, 382312, 484717, 573468, 969434, 1146936, 1454151, 1938868, 2908302, 3393019, 3877736, 5816604, 6786038, 10179057, 11633208, 13572076, 20358114, 27144152, 40716228, 81432456]

約数ペア:

[(1, 81432456), (2, 40716228), (3, 27144152), (4, 20358114), (6, 13572076), (7, 11633208), (8, 10179057), (12, 6786038), (14, 5816604), (21, 3877736), (24, 3393019), (28, 2908302), (42, 1938868), (56, 1454151), (71, 1146936), (84, 969434), (142, 573468), (168, 484717), (213, 382312), (284, 286734), (426, 191156), (497, 163848), (568, 143367), (852, 95578), (994, 81924), (1491, 54616), (1704, 47789), (1988, 40962), (2982, 27308), (3976, 20481), (5964, 13654), (6827, 11928)]