12315280

素因数分解:

$2^4\times 5^1\times {\mathrm{153941}}^1$

素因数の和:153954

約数の個数: 20

約数和(自身を含む): 28633212

約数和(自身を除く): 16317932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 153941, 307882, 615764, 769705, 1231528, 1539410, 2463056, 3078820, 6157640, 12315280]

約数ペア:

[(1, 12315280), (2, 6157640), (4, 3078820), (5, 2463056), (8, 1539410), (10, 1231528), (16, 769705), (20, 615764), (40, 307882), (80, 153941)]