20785055340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2\times {\mathrm{521}}^1$

素因数の和:677

約数の個数: 288

約数和(自身を含む): 69671314944

約数和(自身を除く): 48886259604

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 47, 60, 70, 84, 86, 94, 105, 129, 140, 141, 172, 188, 210, 215, 235, 258, 282, 301, 329, 420, 430, 470, 516, 521, 564, 602, 645, 658, 705, 860, 903, 940, 987, 1042, 1204, 1290, 1316, 1410, 1505, 1563, 1645, 1806, 1974, 2021, 2084, 2209, 2580, 2605, 2820, 3010, 3126, 3290, 3612, 3647, 3948, 4042, 4418, 4515, 4935, 5210, 6020, 6063, 6252, 6580, 6627, 7294, 7815, 8084, 8836, 9030, 9870, 10105, 10420, 10941, 11045, 12126, 13254, 14147, 14588, 15463, 15630, 18060, 18235, 19740, 20210, 21882, 22090, 22403, 24252, 24487, 26508, 28294, 30315, 30926, 31260, 33135, 36470, 40420, 42441, 43764, 44180, 44806, 46389, 48974, 54705, 56588, 60630, 61852, 66270, 67209, 70735, 72940, 73461, 77315, 84882, 89612, 92778, 94987, 97948, 109410, 112015, 121260, 122435, 132540, 134418, 141470, 146922, 154630, 156821, 169764, 171409, 185556, 189974, 212205, 218820, 224030, 231945, 244870, 268836, 282940, 284961, 293844, 309260, 313642, 336045, 342818, 367305, 379948, 424410, 448060, 463890, 470463, 474935, 489740, 514227, 569922, 627284, 664909, 672090, 685636, 734610, 784105, 848820, 857045, 927780, 940926, 949870, 1028454, 1052941, 1139844, 1150889, 1329818, 1344180, 1424805, 1469220, 1568210, 1714090, 1881852, 1899740, 1994727, 2056908, 2105882, 2301778, 2352315, 2571135, 2659636, 2849610, 3136420, 3158823, 3324545, 3428180, 3452667, 3989454, 4211764, 4603556, 4704630, 5142270, 5264705, 5699220, 5754445, 6317646, 6649090, 6905334, 7370587, 7978908, 8056223, 9409260, 9973635, 10284540, 10529410, 11508890, 12635292, 13298180, 13810668, 14741174, 15794115, 16112446, 17263335, 19947270, 21058820, 22111761, 23017780, 24168669, 29482348, 31588230, 32224892, 34526670, 36852935, 39894540, 40281115, 44223522, 48337338, 49488227, 63176460, 69053340, 73705870, 80562230, 88447044, 96674676, 98976454, 110558805, 120843345, 147411740, 148464681, 161124460, 197952908, 221117610, 241686690, 247441135, 296929362, 346417589, 442235220, 483373380, 494882270, 593858724, 692835178, 742323405, 989764540, 1039252767, 1385670356, 1484646810, 1732087945, 2078505534, 2969293620, 3464175890, 4157011068, 5196263835, 6928351780, 10392527670, 20785055340]

約数ペア:

[(1, 20785055340), (2, 10392527670), (3, 6928351780), (4, 5196263835), (5, 4157011068), (6, 3464175890), (7, 2969293620), (10, 2078505534), (12, 1732087945), (14, 1484646810), (15, 1385670356), (20, 1039252767), (21, 989764540), (28, 742323405), (30, 692835178), (35, 593858724), (42, 494882270), (43, 483373380), (47, 442235220), (60, 346417589), (70, 296929362), (84, 247441135), (86, 241686690), (94, 221117610), (105, 197952908), (129, 161124460), (140, 148464681), (141, 147411740), (172, 120843345), (188, 110558805), (210, 98976454), (215, 96674676), (235, 88447044), (258, 80562230), (282, 73705870), (301, 69053340), (329, 63176460), (420, 49488227), (430, 48337338), (470, 44223522), (516, 40281115), (521, 39894540), (564, 36852935), (602, 34526670), (645, 32224892), (658, 31588230), (705, 29482348), (860, 24168669), (903, 23017780), (940, 22111761), (987, 21058820), (1042, 19947270), (1204, 17263335), (1290, 16112446), (1316, 15794115), (1410, 14741174), (1505, 13810668), (1563, 13298180), (1645, 12635292), (1806, 11508890), (1974, 10529410), (2021, 10284540), (2084, 9973635), (2209, 9409260), (2580, 8056223), (2605, 7978908), (2820, 7370587), (3010, 6905334), (3126, 6649090), (3290, 6317646), (3612, 5754445), (3647, 5699220), (3948, 5264705), (4042, 5142270), (4418, 4704630), (4515, 4603556), (4935, 4211764), (5210, 3989454), (6020, 3452667), (6063, 3428180), (6252, 3324545), (6580, 3158823), (6627, 3136420), (7294, 2849610), (7815, 2659636), (8084, 2571135), (8836, 2352315), (9030, 2301778), (9870, 2105882), (10105, 2056908), (10420, 1994727), (10941, 1899740), (11045, 1881852), (12126, 1714090), (13254, 1568210), (14147, 1469220), (14588, 1424805), (15463, 1344180), (15630, 1329818), (18060, 1150889), (18235, 1139844), (19740, 1052941), (20210, 1028454), (21882, 949870), (22090, 940926), (22403, 927780), (24252, 857045), (24487, 848820), (26508, 784105), (28294, 734610), (30315, 685636), (30926, 672090), (31260, 664909), (33135, 627284), (36470, 569922), (40420, 514227), (42441, 489740), (43764, 474935), (44180, 470463), (44806, 463890), (46389, 448060), (48974, 424410), (54705, 379948), (56588, 367305), (60630, 342818), (61852, 336045), (66270, 313642), (67209, 309260), (70735, 293844), (72940, 284961), (73461, 282940), (77315, 268836), (84882, 244870), (89612, 231945), (92778, 224030), (94987, 218820), (97948, 212205), (109410, 189974), (112015, 185556), (121260, 171409), (122435, 169764), (132540, 156821), (134418, 154630), (141470, 146922)]