18152720

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2203}}^1$

素因数の和:2319

約数の個数: 40

約数和(自身を含む): 42634176

約数和(自身を除く): 24481456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 2203, 4120, 4406, 8240, 8812, 11015, 17624, 22030, 35248, 44060, 88120, 176240, 226909, 453818, 907636, 1134545, 1815272, 2269090, 3630544, 4538180, 9076360, 18152720]

約数ペア:

[(1, 18152720), (2, 9076360), (4, 4538180), (5, 3630544), (8, 2269090), (10, 1815272), (16, 1134545), (20, 907636), (40, 453818), (80, 226909), (103, 176240), (206, 88120), (412, 44060), (515, 35248), (824, 22030), (1030, 17624), (1648, 11015), (2060, 8812), (2203, 8240), (4120, 4406)]