19902784176

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{991}}^1$

素因数の和:1456

約数の個数: 240

約数和(自身を含む): 62940733440

約数和(自身を除く): 43037949264

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 31, 33, 36, 44, 48, 62, 66, 72, 88, 93, 99, 124, 132, 144, 176, 186, 198, 248, 264, 279, 341, 372, 396, 409, 496, 528, 558, 682, 744, 792, 818, 991, 1023, 1116, 1227, 1364, 1488, 1584, 1636, 1982, 2046, 2232, 2454, 2728, 2973, 3069, 3272, 3681, 3964, 4092, 4464, 4499, 4908, 5456, 5946, 6138, 6544, 7362, 7928, 8184, 8919, 8998, 9816, 10901, 11892, 12276, 12679, 13497, 14724, 15856, 16368, 17838, 17996, 19632, 21802, 23784, 24552, 25358, 26994, 29448, 30721, 32703, 35676, 35992, 38037, 40491, 43604, 47568, 49104, 50716, 53988, 58896, 61442, 65406, 71352, 71984, 76074, 80982, 87208, 92163, 98109, 101432, 107976, 114111, 122884, 130812, 139469, 142704, 152148, 161964, 174416, 184326, 196218, 202864, 215952, 228222, 245768, 261624, 276489, 278938, 304296, 323928, 337931, 368652, 392436, 405319, 418407, 456444, 491536, 523248, 552978, 557876, 608592, 647856, 675862, 737304, 784872, 810638, 836814, 912888, 1013793, 1105956, 1115752, 1215957, 1255221, 1351724, 1474608, 1569744, 1621276, 1673628, 1825776, 2027586, 2211912, 2231504, 2431914, 2510442, 2703448, 3041379, 3242552, 3347256, 3647871, 4055172, 4423824, 4458509, 4863828, 5020884, 5406896, 6082758, 6485104, 6694512, 7295742, 8110344, 8917018, 9727656, 10041768, 12165516, 12564889, 13375527, 14591484, 16220688, 17834036, 19455312, 20083536, 24331032, 25129778, 26751054, 29182968, 35668072, 37694667, 40126581, 48662064, 50259556, 53502108, 58365936, 71336144, 75389334, 80253162, 100519112, 107004216, 113084001, 138213779, 150778668, 160506324, 201038224, 214008432, 226168002, 276427558, 301557336, 321012648, 414641337, 452336004, 552855116, 603114672, 642025296, 829282674, 904672008, 1105710232, 1243924011, 1658565348, 1809344016, 2211420464, 2487848022, 3317130696, 4975696044, 6634261392, 9951392088, 19902784176]

約数ペア:

[(1, 19902784176), (2, 9951392088), (3, 6634261392), (4, 4975696044), (6, 3317130696), (8, 2487848022), (9, 2211420464), (11, 1809344016), (12, 1658565348), (16, 1243924011), (18, 1105710232), (22, 904672008), (24, 829282674), (31, 642025296), (33, 603114672), (36, 552855116), (44, 452336004), (48, 414641337), (62, 321012648), (66, 301557336), (72, 276427558), (88, 226168002), (93, 214008432), (99, 201038224), (124, 160506324), (132, 150778668), (144, 138213779), (176, 113084001), (186, 107004216), (198, 100519112), (248, 80253162), (264, 75389334), (279, 71336144), (341, 58365936), (372, 53502108), (396, 50259556), (409, 48662064), (496, 40126581), (528, 37694667), (558, 35668072), (682, 29182968), (744, 26751054), (792, 25129778), (818, 24331032), (991, 20083536), (1023, 19455312), (1116, 17834036), (1227, 16220688), (1364, 14591484), (1488, 13375527), (1584, 12564889), (1636, 12165516), (1982, 10041768), (2046, 9727656), (2232, 8917018), (2454, 8110344), (2728, 7295742), (2973, 6694512), (3069, 6485104), (3272, 6082758), (3681, 5406896), (3964, 5020884), (4092, 4863828), (4464, 4458509), (4499, 4423824), (4908, 4055172), (5456, 3647871), (5946, 3347256), (6138, 3242552), (6544, 3041379), (7362, 2703448), (7928, 2510442), (8184, 2431914), (8919, 2231504), (8998, 2211912), (9816, 2027586), (10901, 1825776), (11892, 1673628), (12276, 1621276), (12679, 1569744), (13497, 1474608), (14724, 1351724), (15856, 1255221), (16368, 1215957), (17838, 1115752), (17996, 1105956), (19632, 1013793), (21802, 912888), (23784, 836814), (24552, 810638), (25358, 784872), (26994, 737304), (29448, 675862), (30721, 647856), (32703, 608592), (35676, 557876), (35992, 552978), (38037, 523248), (40491, 491536), (43604, 456444), (47568, 418407), (49104, 405319), (50716, 392436), (53988, 368652), (58896, 337931), (61442, 323928), (65406, 304296), (71352, 278938), (71984, 276489), (76074, 261624), (80982, 245768), (87208, 228222), (92163, 215952), (98109, 202864), (101432, 196218), (107976, 184326), (114111, 174416), (122884, 161964), (130812, 152148), (139469, 142704)]