991507968

素因数分解:

$2^9\times 3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{631}}^1$

素因数の和:697

約数の個数: 240

約数和(自身を含む): 3227507712

約数和(自身を除く): 2235999744

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 31, 32, 33, 36, 44, 48, 62, 64, 66, 72, 88, 93, 96, 99, 124, 128, 132, 144, 176, 186, 192, 198, 248, 256, 264, 279, 288, 341, 352, 372, 384, 396, 496, 512, 528, 558, 576, 631, 682, 704, 744, 768, 792, 992, 1023, 1056, 1116, 1152, 1262, 1364, 1408, 1488, 1536, 1584, 1893, 1984, 2046, 2112, 2232, 2304, 2524, 2728, 2816, 2976, 3069, 3168, 3786, 3968, 4092, 4224, 4464, 4608, 5048, 5456, 5632, 5679, 5952, 6138, 6336, 6941, 7572, 7936, 8184, 8448, 8928, 10096, 10912, 11358, 11904, 12276, 12672, 13882, 15144, 15872, 16368, 16896, 17856, 19561, 20192, 20823, 21824, 22716, 23808, 24552, 25344, 27764, 30288, 32736, 35712, 39122, 40384, 41646, 43648, 45432, 47616, 49104, 50688, 55528, 58683, 60576, 62469, 65472, 71424, 78244, 80768, 83292, 87296, 90864, 98208, 111056, 117366, 121152, 124938, 130944, 142848, 156488, 161536, 166584, 174592, 176049, 181728, 196416, 215171, 222112, 234732, 242304, 249876, 261888, 312976, 323072, 333168, 352098, 363456, 392832, 430342, 444224, 469464, 484608, 499752, 523776, 625952, 645513, 666336, 704196, 726912, 785664, 860684, 888448, 938928, 969216, 999504, 1251904, 1291026, 1332672, 1408392, 1453824, 1571328, 1721368, 1776896, 1877856, 1936539, 1999008, 2503808, 2582052, 2665344, 2816784, 2907648, 3442736, 3553792, 3755712, 3873078, 3998016, 5007616, 5164104, 5330688, 5633568, 6885472, 7511424, 7746156, 7996032, 10015232, 10328208, 10661376, 11267136, 13770944, 15022848, 15492312, 15992064, 20656416, 22534272, 27541888, 30045696, 30984624, 31984128, 41312832, 45068544, 55083776, 61969248, 82625664, 90137088, 110167552, 123938496, 165251328, 247876992, 330502656, 495753984, 991507968]

約数ペア:

[(1, 991507968), (2, 495753984), (3, 330502656), (4, 247876992), (6, 165251328), (8, 123938496), (9, 110167552), (11, 90137088), (12, 82625664), (16, 61969248), (18, 55083776), (22, 45068544), (24, 41312832), (31, 31984128), (32, 30984624), (33, 30045696), (36, 27541888), (44, 22534272), (48, 20656416), (62, 15992064), (64, 15492312), (66, 15022848), (72, 13770944), (88, 11267136), (93, 10661376), (96, 10328208), (99, 10015232), (124, 7996032), (128, 7746156), (132, 7511424), (144, 6885472), (176, 5633568), (186, 5330688), (192, 5164104), (198, 5007616), (248, 3998016), (256, 3873078), (264, 3755712), (279, 3553792), (288, 3442736), (341, 2907648), (352, 2816784), (372, 2665344), (384, 2582052), (396, 2503808), (496, 1999008), (512, 1936539), (528, 1877856), (558, 1776896), (576, 1721368), (631, 1571328), (682, 1453824), (704, 1408392), (744, 1332672), (768, 1291026), (792, 1251904), (992, 999504), (1023, 969216), (1056, 938928), (1116, 888448), (1152, 860684), (1262, 785664), (1364, 726912), (1408, 704196), (1488, 666336), (1536, 645513), (1584, 625952), (1893, 523776), (1984, 499752), (2046, 484608), (2112, 469464), (2232, 444224), (2304, 430342), (2524, 392832), (2728, 363456), (2816, 352098), (2976, 333168), (3069, 323072), (3168, 312976), (3786, 261888), (3968, 249876), (4092, 242304), (4224, 234732), (4464, 222112), (4608, 215171), (5048, 196416), (5456, 181728), (5632, 176049), (5679, 174592), (5952, 166584), (6138, 161536), (6336, 156488), (6941, 142848), (7572, 130944), (7936, 124938), (8184, 121152), (8448, 117366), (8928, 111056), (10096, 98208), (10912, 90864), (11358, 87296), (11904, 83292), (12276, 80768), (12672, 78244), (13882, 71424), (15144, 65472), (15872, 62469), (16368, 60576), (16896, 58683), (17856, 55528), (19561, 50688), (20192, 49104), (20823, 47616), (21824, 45432), (22716, 43648), (23808, 41646), (24552, 40384), (25344, 39122), (27764, 35712), (30288, 32736)]