20531340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:408

約数の個数: 96

約数和(自身を含む): 64532160

約数和(自身を除く): 44000820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 193, 197, 270, 386, 394, 540, 579, 591, 772, 788, 965, 985, 1158, 1182, 1737, 1773, 1930, 1970, 2316, 2364, 2895, 2955, 3474, 3546, 3860, 3940, 5211, 5319, 5790, 5910, 6948, 7092, 8685, 8865, 10422, 10638, 11580, 11820, 17370, 17730, 20844, 21276, 26055, 26595, 34740, 35460, 38021, 52110, 53190, 76042, 104220, 106380, 114063, 152084, 190105, 228126, 342189, 380210, 456252, 570315, 684378, 760420, 1026567, 1140630, 1368756, 1710945, 2053134, 2281260, 3421890, 4106268, 5132835, 6843780, 10265670, 20531340]

約数ペア:

[(1, 20531340), (2, 10265670), (3, 6843780), (4, 5132835), (5, 4106268), (6, 3421890), (9, 2281260), (10, 2053134), (12, 1710945), (15, 1368756), (18, 1140630), (20, 1026567), (27, 760420), (30, 684378), (36, 570315), (45, 456252), (54, 380210), (60, 342189), (90, 228126), (108, 190105), (135, 152084), (180, 114063), (193, 106380), (197, 104220), (270, 76042), (386, 53190), (394, 52110), (540, 38021), (579, 35460), (591, 34740), (772, 26595), (788, 26055), (965, 21276), (985, 20844), (1158, 17730), (1182, 17370), (1737, 11820), (1773, 11580), (1930, 10638), (1970, 10422), (2316, 8865), (2364, 8685), (2895, 7092), (2955, 6948), (3474, 5910), (3546, 5790), (3860, 5319), (3940, 5211)]