20716740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10463}}^1$

素因数の和:10489

約数の個数: 72

約数和(自身を含む): 68560128

約数和(自身を除く): 47843388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10463, 20926, 31389, 41852, 52315, 62778, 94167, 104630, 115093, 125556, 156945, 188334, 209260, 230186, 313890, 345279, 376668, 460372, 470835, 575465, 627780, 690558, 941670, 1035837, 1150930, 1381116, 1726395, 1883340, 2071674, 2301860, 3452790, 4143348, 5179185, 6905580, 10358370, 20716740]

約数ペア:

[(1, 20716740), (2, 10358370), (3, 6905580), (4, 5179185), (5, 4143348), (6, 3452790), (9, 2301860), (10, 2071674), (11, 1883340), (12, 1726395), (15, 1381116), (18, 1150930), (20, 1035837), (22, 941670), (30, 690558), (33, 627780), (36, 575465), (44, 470835), (45, 460372), (55, 376668), (60, 345279), (66, 313890), (90, 230186), (99, 209260), (110, 188334), (132, 156945), (165, 125556), (180, 115093), (198, 104630), (220, 94167), (330, 62778), (396, 52315), (495, 41852), (660, 31389), (990, 20926), (1980, 10463)]