84789790

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{20731}}^1$

素因数の和:21147

約数の個数: 16

約数和(自身を含む): 153002160

約数和(自身を除く): 68212370

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 20731, 41462, 103655, 207310, 8478979, 16957958, 42394895, 84789790]

約数ペア:

[(1, 84789790), (2, 42394895), (5, 16957958), (10, 8478979), (409, 207310), (818, 103655), (2045, 41462), (4090, 20731)]