28089520

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1129}}^1$

素因数の和:1453

約数の個数: 40

約数和(自身を含む): 65576160

約数和(自身を除く): 37486640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1129, 1244, 1555, 2258, 2488, 3110, 4516, 4976, 5645, 6220, 9032, 11290, 12440, 18064, 22580, 24880, 45160, 90320, 351119, 702238, 1404476, 1755595, 2808952, 3511190, 5617904, 7022380, 14044760, 28089520]

約数ペア:

[(1, 28089520), (2, 14044760), (4, 7022380), (5, 5617904), (8, 3511190), (10, 2808952), (16, 1755595), (20, 1404476), (40, 702238), (80, 351119), (311, 90320), (622, 45160), (1129, 24880), (1244, 22580), (1555, 18064), (2258, 12440), (2488, 11290), (3110, 9032), (4516, 6220), (4976, 5645)]