66796640

素因数分解:

$2^5\times 5^1\times {\mathrm{417479}}^1$

素因数の和:417494

約数の個数: 24

約数和(自身を含む): 157807440

約数和(自身を除く): 91010800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 417479, 834958, 1669916, 2087395, 3339832, 4174790, 6679664, 8349580, 13359328, 16699160, 33398320, 66796640]

約数ペア:

[(1, 66796640), (2, 33398320), (4, 16699160), (5, 13359328), (8, 8349580), (10, 6679664), (16, 4174790), (20, 3339832), (32, 2087395), (40, 1669916), (80, 834958), (160, 417479)]