81900364

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{32143}}^1$

素因数の和:32174

約数の個数: 36

約数和(自身を含む): 179556384

約数和(自身を除く): 97656020

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 32143, 64286, 128572, 225001, 417859, 450002, 835718, 900004, 1575007, 1671436, 2925013, 3150014, 5850026, 6300028, 11700052, 20475091, 40950182, 81900364]

約数ペア:

[(1, 81900364), (2, 40950182), (4, 20475091), (7, 11700052), (13, 6300028), (14, 5850026), (26, 3150014), (28, 2925013), (49, 1671436), (52, 1575007), (91, 900004), (98, 835718), (182, 450002), (196, 417859), (364, 225001), (637, 128572), (1274, 64286), (2548, 32143)]