20656980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114761}}^1$

素因数の和:114776

約数の個数: 36

約数和(自身を含む): 62660052

約数和(自身を除く): 42003072

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114761, 229522, 344283, 459044, 573805, 688566, 1032849, 1147610, 1377132, 1721415, 2065698, 2295220, 3442830, 4131396, 5164245, 6885660, 10328490, 20656980]

約数ペア:

[(1, 20656980), (2, 10328490), (3, 6885660), (4, 5164245), (5, 4131396), (6, 3442830), (9, 2295220), (10, 2065698), (12, 1721415), (15, 1377132), (18, 1147610), (20, 1032849), (30, 688566), (36, 573805), (45, 459044), (60, 344283), (90, 229522), (180, 114761)]