205123970

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{288907}}^1$

素因数の和:288985

約数の個数: 16

約数和(自身を含む): 374424768

約数和(自身を除く): 169300798

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 288907, 577814, 1444535, 2889070, 20512397, 41024794, 102561985, 205123970]

約数ペア:

[(1, 205123970), (2, 102561985), (5, 41024794), (10, 20512397), (71, 2889070), (142, 1444535), (355, 577814), (710, 288907)]