278829904

素因数分解:

$2^4\times {\mathrm{839}}^1\times {\mathrm{20771}}^1$

素因数の和:21618

約数の個数: 20

約数和(自身を含む): 540902880

約数和(自身を除く): 262072976

約数列:

[1, 2, 4, 8, 16, 839, 1678, 3356, 6712, 13424, 20771, 41542, 83084, 166168, 332336, 17426869, 34853738, 69707476, 139414952, 278829904]

約数ペア:

[(1, 278829904), (2, 139414952), (4, 69707476), (8, 34853738), (16, 17426869), (839, 332336), (1678, 166168), (3356, 83084), (6712, 41542), (13424, 20771)]