27786980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8221}}^1$

素因数の和:8256

約数の個数: 36

約数和(自身を含む): 63194292

約数和(自身を除く): 35407312

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8221, 16442, 32884, 41105, 82210, 106873, 164420, 213746, 427492, 534365, 1068730, 1389349, 2137460, 2778698, 5557396, 6946745, 13893490, 27786980]

約数ペア:

[(1, 27786980), (2, 13893490), (4, 6946745), (5, 5557396), (10, 2778698), (13, 2137460), (20, 1389349), (26, 1068730), (52, 534365), (65, 427492), (130, 213746), (169, 164420), (260, 106873), (338, 82210), (676, 41105), (845, 32884), (1690, 16442), (3380, 8221)]