20707760

素因数分解:

$2^4\times 5^1\times {\mathrm{258847}}^1$

素因数の和:258860

約数の個数: 20

約数和(自身を含む): 48145728

約数和(自身を除く): 27437968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 258847, 517694, 1035388, 1294235, 2070776, 2588470, 4141552, 5176940, 10353880, 20707760]

約数ペア:

[(1, 20707760), (2, 10353880), (4, 5176940), (5, 4141552), (8, 2588470), (10, 2070776), (16, 1294235), (20, 1035388), (40, 517694), (80, 258847)]