66447760

素因数分解:

$2^4\times 5^1\times {\mathrm{830597}}^1$

素因数の和:830610

約数の個数: 20

約数和(自身を含む): 154491228

約数和(自身を除く): 88043468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 830597, 1661194, 3322388, 4152985, 6644776, 8305970, 13289552, 16611940, 33223880, 66447760]

約数ペア:

[(1, 66447760), (2, 33223880), (4, 16611940), (5, 13289552), (8, 8305970), (10, 6644776), (16, 4152985), (20, 3322388), (40, 1661194), (80, 830597)]