20342888

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 39501000

約数和(自身を除く): 19158112

約数列:

[1, 2, 4, 8, 41, 82, 109, 164, 218, 328, 436, 569, 872, 1138, 2276, 4469, 4552, 8938, 17876, 23329, 35752, 46658, 62021, 93316, 124042, 186632, 248084, 496168, 2542861, 5085722, 10171444, 20342888]

約数ペア:

[(1, 20342888), (2, 10171444), (4, 5085722), (8, 2542861), (41, 496168), (82, 248084), (109, 186632), (164, 124042), (218, 93316), (328, 62021), (436, 46658), (569, 35752), (872, 23329), (1138, 17876), (2276, 8938), (4469, 4552)]