278328310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2140987}}^1$

素因数の和:2141007

約数の個数: 16

約数和(自身を含む): 539528976

約数和(自身を除く): 261200666

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 2140987, 4281974, 10704935, 21409870, 27832831, 55665662, 139164155, 278328310]

約数ペア:

[(1, 278328310), (2, 139164155), (5, 55665662), (10, 27832831), (13, 21409870), (26, 10704935), (65, 4281974), (130, 2140987)]