82802560

素因数分解:

$2^7\times 5^1\times {\mathrm{129379}}^1$

素因数の和:129398

約数の個数: 32

約数和(自身を含む): 197951400

約数和(自身を除く): 115148840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 129379, 258758, 517516, 646895, 1035032, 1293790, 2070064, 2587580, 4140128, 5175160, 8280256, 10350320, 16560512, 20700640, 41401280, 82802560]

約数ペア:

[(1, 82802560), (2, 41401280), (4, 20700640), (5, 16560512), (8, 10350320), (10, 8280256), (16, 5175160), (20, 4140128), (32, 2587580), (40, 2070064), (64, 1293790), (80, 1035032), (128, 646895), (160, 517516), (320, 258758), (640, 129379)]