20179840

素因数分解:

$2^7\times 5^1\times {\mathrm{31531}}^1$

素因数の和:31550

約数の個数: 32

約数和(自身を含む): 48243960

約数和(自身を除く): 28064120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31531, 63062, 126124, 157655, 252248, 315310, 504496, 630620, 1008992, 1261240, 2017984, 2522480, 4035968, 5044960, 10089920, 20179840]

約数ペア:

[(1, 20179840), (2, 10089920), (4, 5044960), (5, 4035968), (8, 2522480), (10, 2017984), (16, 1261240), (20, 1008992), (32, 630620), (40, 504496), (64, 315310), (80, 252248), (128, 157655), (160, 126124), (320, 63062), (640, 31531)]