20023080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 192

約数和(自身を含む): 75841920

約数和(自身を除く): 55818840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 121, 132, 140, 154, 165, 168, 197, 210, 220, 231, 242, 264, 280, 308, 330, 363, 385, 394, 420, 440, 462, 484, 591, 605, 616, 660, 726, 770, 788, 840, 847, 924, 968, 985, 1155, 1182, 1210, 1320, 1379, 1452, 1540, 1576, 1694, 1815, 1848, 1970, 2167, 2310, 2364, 2420, 2541, 2758, 2904, 2955, 3080, 3388, 3630, 3940, 4137, 4235, 4334, 4620, 4728, 4840, 5082, 5516, 5910, 6501, 6776, 6895, 7260, 7880, 8274, 8470, 8668, 9240, 10164, 10835, 11032, 11820, 12705, 13002, 13790, 14520, 15169, 16548, 16940, 17336, 20328, 20685, 21670, 23640, 23837, 25410, 26004, 27580, 30338, 32505, 33096, 33880, 41370, 43340, 45507, 47674, 50820, 52008, 55160, 60676, 65010, 71511, 75845, 82740, 86680, 91014, 95348, 101640, 119185, 121352, 130020, 143022, 151690, 165480, 166859, 182028, 190696, 227535, 238370, 260040, 286044, 303380, 333718, 357555, 364056, 455070, 476740, 500577, 572088, 606760, 667436, 715110, 834295, 910140, 953480, 1001154, 1334872, 1430220, 1668590, 1820280, 2002308, 2502885, 2860440, 3337180, 4004616, 5005770, 6674360, 10011540, 20023080]

約数ペア:

[(1, 20023080), (2, 10011540), (3, 6674360), (4, 5005770), (5, 4004616), (6, 3337180), (7, 2860440), (8, 2502885), (10, 2002308), (11, 1820280), (12, 1668590), (14, 1430220), (15, 1334872), (20, 1001154), (21, 953480), (22, 910140), (24, 834295), (28, 715110), (30, 667436), (33, 606760), (35, 572088), (40, 500577), (42, 476740), (44, 455070), (55, 364056), (56, 357555), (60, 333718), (66, 303380), (70, 286044), (77, 260040), (84, 238370), (88, 227535), (105, 190696), (110, 182028), (120, 166859), (121, 165480), (132, 151690), (140, 143022), (154, 130020), (165, 121352), (168, 119185), (197, 101640), (210, 95348), (220, 91014), (231, 86680), (242, 82740), (264, 75845), (280, 71511), (308, 65010), (330, 60676), (363, 55160), (385, 52008), (394, 50820), (420, 47674), (440, 45507), (462, 43340), (484, 41370), (591, 33880), (605, 33096), (616, 32505), (660, 30338), (726, 27580), (770, 26004), (788, 25410), (840, 23837), (847, 23640), (924, 21670), (968, 20685), (985, 20328), (1155, 17336), (1182, 16940), (1210, 16548), (1320, 15169), (1379, 14520), (1452, 13790), (1540, 13002), (1576, 12705), (1694, 11820), (1815, 11032), (1848, 10835), (1970, 10164), (2167, 9240), (2310, 8668), (2364, 8470), (2420, 8274), (2541, 7880), (2758, 7260), (2904, 6895), (2955, 6776), (3080, 6501), (3388, 5910), (3630, 5516), (3940, 5082), (4137, 4840), (4235, 4728), (4334, 4620)]