20728980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1669}}^1$

素因数の和:1710

約数の個数: 96

約数和(自身を含む): 67334400

約数和(自身を除く): 46605420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 90, 92, 108, 115, 135, 138, 180, 207, 230, 270, 276, 345, 414, 460, 540, 621, 690, 828, 1035, 1242, 1380, 1669, 2070, 2484, 3105, 3338, 4140, 5007, 6210, 6676, 8345, 10014, 12420, 15021, 16690, 20028, 25035, 30042, 33380, 38387, 45063, 50070, 60084, 75105, 76774, 90126, 100140, 115161, 150210, 153548, 180252, 191935, 225315, 230322, 300420, 345483, 383870, 450630, 460644, 575805, 690966, 767740, 901260, 1036449, 1151610, 1381932, 1727415, 2072898, 2303220, 3454830, 4145796, 5182245, 6909660, 10364490, 20728980]

約数ペア:

[(1, 20728980), (2, 10364490), (3, 6909660), (4, 5182245), (5, 4145796), (6, 3454830), (9, 2303220), (10, 2072898), (12, 1727415), (15, 1381932), (18, 1151610), (20, 1036449), (23, 901260), (27, 767740), (30, 690966), (36, 575805), (45, 460644), (46, 450630), (54, 383870), (60, 345483), (69, 300420), (90, 230322), (92, 225315), (108, 191935), (115, 180252), (135, 153548), (138, 150210), (180, 115161), (207, 100140), (230, 90126), (270, 76774), (276, 75105), (345, 60084), (414, 50070), (460, 45063), (540, 38387), (621, 33380), (690, 30042), (828, 25035), (1035, 20028), (1242, 16690), (1380, 15021), (1669, 12420), (2070, 10014), (2484, 8345), (3105, 6676), (3338, 6210), (4140, 5007)]