681280

素因数分解:

$2^6\times 5^1\times {\mathrm{2129}}^1$

素因数の和:2146

約数の個数: 28

約数和(自身を含む): 1623060

約数和(自身を除く): 941780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2129, 4258, 8516, 10645, 17032, 21290, 34064, 42580, 68128, 85160, 136256, 170320, 340640, 681280]

約数ペア:

[(1, 681280), (2, 340640), (4, 170320), (5, 136256), (8, 85160), (10, 68128), (16, 42580), (20, 34064), (32, 21290), (40, 17032), (64, 10645), (80, 8516), (160, 4258), (320, 2129)]