81818128

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10289}}^1$

素因数の和:10375

約数の個数: 40

約数和(自身を含む): 183738240

約数和(自身を除く): 101920112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 10289, 20578, 41156, 72023, 82312, 144046, 164624, 288092, 576184, 730519, 1152368, 1461038, 2922076, 5113633, 5844152, 10227266, 11688304, 20454532, 40909064, 81818128]

約数ペア:

[(1, 81818128), (2, 40909064), (4, 20454532), (7, 11688304), (8, 10227266), (14, 5844152), (16, 5113633), (28, 2922076), (56, 1461038), (71, 1152368), (112, 730519), (142, 576184), (284, 288092), (497, 164624), (568, 144046), (994, 82312), (1136, 72023), (1988, 41156), (3976, 20578), (7952, 10289)]