21736640

素因数分解:

$2^6\times 5^1\times {\mathrm{67927}}^1$

素因数の和:67944

約数の個数: 28

約数和(自身を含む): 51761136

約数和(自身を除く): 30024496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67927, 135854, 271708, 339635, 543416, 679270, 1086832, 1358540, 2173664, 2717080, 4347328, 5434160, 10868320, 21736640]

約数ペア:

[(1, 21736640), (2, 10868320), (4, 5434160), (5, 4347328), (8, 2717080), (10, 2173664), (16, 1358540), (20, 1086832), (32, 679270), (40, 543416), (64, 339635), (80, 271708), (160, 135854), (320, 67927)]