27081680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19913}}^1$

素因数の和:19943

約数の個数: 40

約数和(自身を含む): 66672072

約数和(自身を除く): 39590392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 19913, 39826, 79652, 99565, 159304, 199130, 318608, 338521, 398260, 677042, 796520, 1354084, 1593040, 1692605, 2708168, 3385210, 5416336, 6770420, 13540840, 27081680]

約数ペア:

[(1, 27081680), (2, 13540840), (4, 6770420), (5, 5416336), (8, 3385210), (10, 2708168), (16, 1692605), (17, 1593040), (20, 1354084), (34, 796520), (40, 677042), (68, 398260), (80, 338521), (85, 318608), (136, 199130), (170, 159304), (272, 99565), (340, 79652), (680, 39826), (1360, 19913)]