64143280

素因数分解:

$2^4\times 5^1\times {\mathrm{801791}}^1$

素因数の和:801804

約数の個数: 20

約数和(自身を含む): 149133312

約数和(自身を除く): 84990032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 801791, 1603582, 3207164, 4008955, 6414328, 8017910, 12828656, 16035820, 32071640, 64143280]

約数ペア:

[(1, 64143280), (2, 32071640), (4, 16035820), (5, 12828656), (8, 8017910), (10, 6414328), (16, 4008955), (20, 3207164), (40, 1603582), (80, 801791)]