20802573790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{576089}}^1$

素因数の和:576276

約数の個数: 32

約数和(自身を含む): 39321599040

約数和(自身を除く): 18519025250

約数列:

[1, 2, 5, 10, 23, 46, 115, 157, 230, 314, 785, 1570, 3611, 7222, 18055, 36110, 576089, 1152178, 2880445, 5760890, 13250047, 26500094, 66250235, 90445973, 132500470, 180891946, 452229865, 904459730, 2080257379, 4160514758, 10401286895, 20802573790]

約数ペア:

[(1, 20802573790), (2, 10401286895), (5, 4160514758), (10, 2080257379), (23, 904459730), (46, 452229865), (115, 180891946), (157, 132500470), (230, 90445973), (314, 66250235), (785, 26500094), (1570, 13250047), (3611, 5760890), (7222, 2880445), (18055, 1152178), (36110, 576089)]