278329090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2140993}}^1$

素因数の和:2141013

約数の個数: 16

約数和(自身を含む): 539530488

約数和(自身を除く): 261201398

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 2140993, 4281986, 10704965, 21409930, 27832909, 55665818, 139164545, 278329090]

約数ペア:

[(1, 278329090), (2, 139164545), (5, 55665818), (10, 27832909), (13, 21409930), (26, 10704965), (65, 4281986), (130, 2140993)]