20170121762

素因数分解:

$2^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{78347}}^1$

素因数の和:78471

約数の個数: 48

約数和(自身を含む): 36655581888

約数和(自身を除く): 16485460126

約数列:

[1, 2, 7, 14, 37, 49, 71, 74, 98, 142, 259, 497, 518, 994, 1813, 2627, 3479, 3626, 5254, 6958, 18389, 36778, 78347, 128723, 156694, 257446, 548429, 1096858, 2898839, 3839003, 5562637, 5797678, 7678006, 11125274, 20291873, 38938459, 40583746, 77876918, 142043111, 205817569, 272569213, 284086222, 411635138, 545138426, 1440722983, 2881445966, 10085060881, 20170121762]

約数ペア:

[(1, 20170121762), (2, 10085060881), (7, 2881445966), (14, 1440722983), (37, 545138426), (49, 411635138), (71, 284086222), (74, 272569213), (98, 205817569), (142, 142043111), (259, 77876918), (497, 40583746), (518, 38938459), (994, 20291873), (1813, 11125274), (2627, 7678006), (3479, 5797678), (3626, 5562637), (5254, 3839003), (6958, 2898839), (18389, 1096858), (36778, 548429), (78347, 257446), (128723, 156694)]