81945556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{67}}^1$

素因数の和:138

約数の個数: 108

約数和(自身を含む): 192962784

約数和(自身を除く): 111017228

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 67, 76, 77, 121, 133, 134, 154, 209, 242, 266, 268, 308, 361, 418, 469, 484, 532, 722, 737, 836, 847, 938, 1273, 1444, 1463, 1474, 1694, 1876, 2299, 2527, 2546, 2926, 2948, 3388, 3971, 4598, 5054, 5092, 5159, 5852, 7942, 8107, 8911, 9196, 10108, 10318, 14003, 15884, 16093, 16214, 17822, 20636, 24187, 27797, 28006, 32186, 32428, 35644, 43681, 48374, 55594, 56012, 56749, 64372, 87362, 96748, 98021, 111188, 113498, 154033, 169309, 174724, 196042, 226996, 266057, 305767, 308066, 338618, 392084, 532114, 611534, 616132, 677236, 1064228, 1078231, 1223068, 1862399, 2156462, 2926627, 3724798, 4312924, 5853254, 7449596, 11706508, 20486389, 40972778, 81945556]

約数ペア:

[(1, 81945556), (2, 40972778), (4, 20486389), (7, 11706508), (11, 7449596), (14, 5853254), (19, 4312924), (22, 3724798), (28, 2926627), (38, 2156462), (44, 1862399), (67, 1223068), (76, 1078231), (77, 1064228), (121, 677236), (133, 616132), (134, 611534), (154, 532114), (209, 392084), (242, 338618), (266, 308066), (268, 305767), (308, 266057), (361, 226996), (418, 196042), (469, 174724), (484, 169309), (532, 154033), (722, 113498), (737, 111188), (836, 98021), (847, 96748), (938, 87362), (1273, 64372), (1444, 56749), (1463, 56012), (1474, 55594), (1694, 48374), (1876, 43681), (2299, 35644), (2527, 32428), (2546, 32186), (2926, 28006), (2948, 27797), (3388, 24187), (3971, 20636), (4598, 17822), (5054, 16214), (5092, 16093), (5159, 15884), (5852, 14003), (7942, 10318), (8107, 10108), (8911, 9196)]