199053440

素因数分解:

$2^7\times 5^1\times {\mathrm{311021}}^1$

素因数の和:311040

約数の個数: 32

約数和(自身を含む): 475863660

約数和(自身を除く): 276810220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 311021, 622042, 1244084, 1555105, 2488168, 3110210, 4976336, 6220420, 9952672, 12440840, 19905344, 24881680, 39810688, 49763360, 99526720, 199053440]

約数ペア:

[(1, 199053440), (2, 99526720), (4, 49763360), (5, 39810688), (8, 24881680), (10, 19905344), (16, 12440840), (20, 9952672), (32, 6220420), (40, 4976336), (64, 3110210), (80, 2488168), (128, 1555105), (160, 1244084), (320, 622042), (640, 311021)]