254851280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{31541}}^1$

素因数の和:31655

約数の個数: 40

約数和(自身を含む): 598414824

約数和(自身を除く): 343563544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 31541, 63082, 126164, 157705, 252328, 315410, 504656, 630820, 1261640, 2523280, 3185641, 6371282, 12742564, 15928205, 25485128, 31856410, 50970256, 63712820, 127425640, 254851280]

約数ペア:

[(1, 254851280), (2, 127425640), (4, 63712820), (5, 50970256), (8, 31856410), (10, 25485128), (16, 15928205), (20, 12742564), (40, 6371282), (80, 3185641), (101, 2523280), (202, 1261640), (404, 630820), (505, 504656), (808, 315410), (1010, 252328), (1616, 157705), (2020, 126164), (4040, 63082), (8080, 31541)]