20079950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3319}}^1$

素因数の和:3353

約数の個数: 36

約数和(自身を含む): 41065080

約数和(自身を除く): 20985130

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3319, 6050, 6638, 16595, 33190, 36509, 73018, 82975, 165950, 182545, 365090, 401599, 803198, 912725, 1825450, 2007995, 4015990, 10039975, 20079950]

約数ペア:

[(1, 20079950), (2, 10039975), (5, 4015990), (10, 2007995), (11, 1825450), (22, 912725), (25, 803198), (50, 401599), (55, 365090), (110, 182545), (121, 165950), (242, 82975), (275, 73018), (550, 36509), (605, 33190), (1210, 16595), (3025, 6638), (3319, 6050)]