256420684810

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{288113129}}^1$

素因数の和:288113225

約数の個数: 16

約数和(自身を含む): 466743270600

約数和(自身を除く): 210322585790

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 288113129, 576226258, 1440565645, 2881131290, 25642068481, 51284136962, 128210342405, 256420684810]

約数ペア:

[(1, 256420684810), (2, 128210342405), (5, 51284136962), (10, 25642068481), (89, 2881131290), (178, 1440565645), (445, 576226258), (890, 288113129)]