8123320

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{653}}^1$

素因数の和:975

約数の個数: 32

約数和(自身を含む): 18364320

約数和(自身を除く): 10241000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 653, 1244, 1306, 1555, 2488, 2612, 3110, 3265, 5224, 6220, 6530, 12440, 13060, 26120, 203083, 406166, 812332, 1015415, 1624664, 2030830, 4061660, 8123320]

約数ペア:

[(1, 8123320), (2, 4061660), (4, 2030830), (5, 1624664), (8, 1015415), (10, 812332), (20, 406166), (40, 203083), (311, 26120), (622, 13060), (653, 12440), (1244, 6530), (1306, 6220), (1555, 5224), (2488, 3265), (2612, 3110)]