18745090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20599}}^1$

素因数の和:20626

約数の個数: 32

約数和(自身を含む): 41529600

約数和(自身を除く): 22784510

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20599, 41198, 102995, 144193, 205990, 267787, 288386, 535574, 720965, 1338935, 1441930, 1874509, 2677870, 3749018, 9372545, 18745090]

約数ペア:

[(1, 18745090), (2, 9372545), (5, 3749018), (7, 2677870), (10, 1874509), (13, 1441930), (14, 1338935), (26, 720965), (35, 535574), (65, 288386), (70, 267787), (91, 205990), (130, 144193), (182, 102995), (455, 41198), (910, 20599)]