22312720

素因数分解:

$2^4\times 5^1\times {\mathrm{278909}}^1$

素因数の和:278922

約数の個数: 20

約数和(自身を含む): 51877260

約数和(自身を除く): 29564540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 278909, 557818, 1115636, 1394545, 2231272, 2789090, 4462544, 5578180, 11156360, 22312720]

約数ペア:

[(1, 22312720), (2, 11156360), (4, 5578180), (5, 4462544), (8, 2789090), (10, 2231272), (16, 1394545), (20, 1115636), (40, 557818), (80, 278909)]