64909120

素因数分解:

$2^6\times 5^1\times {\mathrm{202841}}^1$

素因数の和:202858

約数の個数: 28

約数和(自身を含む): 154565604

約数和(自身を除く): 89656484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 202841, 405682, 811364, 1014205, 1622728, 2028410, 3245456, 4056820, 6490912, 8113640, 12981824, 16227280, 32454560, 64909120]

約数ペア:

[(1, 64909120), (2, 32454560), (4, 16227280), (5, 12981824), (8, 8113640), (10, 6490912), (16, 4056820), (20, 3245456), (32, 2028410), (40, 1622728), (64, 1014205), (80, 811364), (160, 405682), (320, 202841)]