319846720

素因数分解:

$2^6\times 5^1\times {\mathrm{999521}}^1$

素因数の和:999538

約数の個数: 28

約数和(自身を含む): 761635764

約数和(自身を除く): 441789044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 999521, 1999042, 3998084, 4997605, 7996168, 9995210, 15992336, 19990420, 31984672, 39980840, 63969344, 79961680, 159923360, 319846720]

約数ペア:

[(1, 319846720), (2, 159923360), (4, 79961680), (5, 63969344), (8, 39980840), (10, 31984672), (16, 19990420), (20, 15992336), (32, 9995210), (40, 7996168), (64, 4997605), (80, 3998084), (160, 1999042), (320, 999521)]