81999148

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{521}}^1$

素因数の和:623

約数の個数: 72

約数和(自身を含む): 184950864

約数和(自身を除く): 102951716

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 73, 77, 98, 146, 154, 196, 292, 308, 511, 521, 539, 803, 1022, 1042, 1078, 1606, 2044, 2084, 2156, 3212, 3577, 3647, 5621, 5731, 7154, 7294, 11242, 11462, 14308, 14588, 22484, 22924, 25529, 38033, 39347, 40117, 51058, 76066, 78694, 80234, 102116, 152132, 157388, 160468, 266231, 280819, 418363, 532462, 561638, 836726, 1064924, 1123276, 1673452, 1863617, 2928541, 3727234, 5857082, 7454468, 11714164, 20499787, 40999574, 81999148]

約数ペア:

[(1, 81999148), (2, 40999574), (4, 20499787), (7, 11714164), (11, 7454468), (14, 5857082), (22, 3727234), (28, 2928541), (44, 1863617), (49, 1673452), (73, 1123276), (77, 1064924), (98, 836726), (146, 561638), (154, 532462), (196, 418363), (292, 280819), (308, 266231), (511, 160468), (521, 157388), (539, 152132), (803, 102116), (1022, 80234), (1042, 78694), (1078, 76066), (1606, 51058), (2044, 40117), (2084, 39347), (2156, 38033), (3212, 25529), (3577, 22924), (3647, 22484), (5621, 14588), (5731, 14308), (7154, 11462), (7294, 11242)]