21960840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 72990720

約数和(自身を除く): 51029880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 127, 131, 132, 165, 220, 254, 262, 264, 330, 381, 393, 440, 508, 524, 635, 655, 660, 762, 786, 1016, 1048, 1270, 1310, 1320, 1397, 1441, 1524, 1572, 1905, 1965, 2540, 2620, 2794, 2882, 3048, 3144, 3810, 3930, 4191, 4323, 5080, 5240, 5588, 5764, 6985, 7205, 7620, 7860, 8382, 8646, 11176, 11528, 13970, 14410, 15240, 15720, 16637, 16764, 17292, 20955, 21615, 27940, 28820, 33274, 33528, 34584, 41910, 43230, 49911, 55880, 57640, 66548, 83185, 83820, 86460, 99822, 133096, 166370, 167640, 172920, 183007, 199644, 249555, 332740, 366014, 399288, 499110, 549021, 665480, 732028, 915035, 998220, 1098042, 1464056, 1830070, 1996440, 2196084, 2745105, 3660140, 4392168, 5490210, 7320280, 10980420, 21960840]

約数ペア:

[(1, 21960840), (2, 10980420), (3, 7320280), (4, 5490210), (5, 4392168), (6, 3660140), (8, 2745105), (10, 2196084), (11, 1996440), (12, 1830070), (15, 1464056), (20, 1098042), (22, 998220), (24, 915035), (30, 732028), (33, 665480), (40, 549021), (44, 499110), (55, 399288), (60, 366014), (66, 332740), (88, 249555), (110, 199644), (120, 183007), (127, 172920), (131, 167640), (132, 166370), (165, 133096), (220, 99822), (254, 86460), (262, 83820), (264, 83185), (330, 66548), (381, 57640), (393, 55880), (440, 49911), (508, 43230), (524, 41910), (635, 34584), (655, 33528), (660, 33274), (762, 28820), (786, 27940), (1016, 21615), (1048, 20955), (1270, 17292), (1310, 16764), (1320, 16637), (1397, 15720), (1441, 15240), (1524, 14410), (1572, 13970), (1905, 11528), (1965, 11176), (2540, 8646), (2620, 8382), (2794, 7860), (2882, 7620), (3048, 7205), (3144, 6985), (3810, 5764), (3930, 5588), (4191, 5240), (4323, 5080)]