21016821760

素因数分解:

$2^{14}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{281}}^1$

素因数の和:408

約数の個数: 240

約数和(自身を含む): 55885298112

約数和(自身を除く): 34868476352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 83, 88, 110, 128, 160, 166, 176, 220, 256, 281, 320, 332, 352, 415, 440, 512, 562, 640, 664, 704, 830, 880, 913, 1024, 1124, 1280, 1328, 1405, 1408, 1660, 1760, 1826, 2048, 2248, 2560, 2656, 2810, 2816, 3091, 3320, 3520, 3652, 4096, 4496, 4565, 5120, 5312, 5620, 5632, 6182, 6640, 7040, 7304, 8192, 8992, 9130, 10240, 10624, 11240, 11264, 12364, 13280, 14080, 14608, 15455, 16384, 17984, 18260, 20480, 21248, 22480, 22528, 23323, 24728, 26560, 28160, 29216, 30910, 35968, 36520, 40960, 42496, 44960, 45056, 46646, 49456, 53120, 56320, 58432, 61820, 71936, 73040, 81920, 84992, 89920, 90112, 93292, 98912, 106240, 112640, 116615, 116864, 123640, 143872, 146080, 169984, 179840, 180224, 186584, 197824, 212480, 225280, 233230, 233728, 247280, 256553, 287744, 292160, 339968, 359680, 373168, 395648, 424960, 450560, 466460, 467456, 494560, 513106, 575488, 584320, 679936, 719360, 746336, 791296, 849920, 901120, 932920, 934912, 989120, 1026212, 1150976, 1168640, 1282765, 1359872, 1438720, 1492672, 1582592, 1699840, 1865840, 1869824, 1978240, 2052424, 2301952, 2337280, 2565530, 2877440, 2985344, 3165184, 3399680, 3731680, 3739648, 3956480, 4104848, 4603904, 4674560, 5131060, 5754880, 5970688, 6330368, 6799360, 7463360, 7479296, 7912960, 8209696, 9349120, 10262120, 11509760, 11941376, 12660736, 14926720, 14958592, 15825920, 16419392, 18698240, 20524240, 23019520, 23882752, 25321472, 29853440, 31651840, 32838784, 37396480, 41048480, 47765504, 50642944, 59706880, 63303680, 65677568, 74792960, 82096960, 95531008, 119413760, 126607360, 131355136, 164193920, 191062016, 238827520, 253214720, 262710272, 328387840, 382124032, 477655040, 525420544, 656775680, 955310080, 1050841088, 1313551360, 1910620160, 2101682176, 2627102720, 4203364352, 5254205440, 10508410880, 21016821760]

約数ペア:

[(1, 21016821760), (2, 10508410880), (4, 5254205440), (5, 4203364352), (8, 2627102720), (10, 2101682176), (11, 1910620160), (16, 1313551360), (20, 1050841088), (22, 955310080), (32, 656775680), (40, 525420544), (44, 477655040), (55, 382124032), (64, 328387840), (80, 262710272), (83, 253214720), (88, 238827520), (110, 191062016), (128, 164193920), (160, 131355136), (166, 126607360), (176, 119413760), (220, 95531008), (256, 82096960), (281, 74792960), (320, 65677568), (332, 63303680), (352, 59706880), (415, 50642944), (440, 47765504), (512, 41048480), (562, 37396480), (640, 32838784), (664, 31651840), (704, 29853440), (830, 25321472), (880, 23882752), (913, 23019520), (1024, 20524240), (1124, 18698240), (1280, 16419392), (1328, 15825920), (1405, 14958592), (1408, 14926720), (1660, 12660736), (1760, 11941376), (1826, 11509760), (2048, 10262120), (2248, 9349120), (2560, 8209696), (2656, 7912960), (2810, 7479296), (2816, 7463360), (3091, 6799360), (3320, 6330368), (3520, 5970688), (3652, 5754880), (4096, 5131060), (4496, 4674560), (4565, 4603904), (5120, 4104848), (5312, 3956480), (5620, 3739648), (5632, 3731680), (6182, 3399680), (6640, 3165184), (7040, 2985344), (7304, 2877440), (8192, 2565530), (8992, 2337280), (9130, 2301952), (10240, 2052424), (10624, 1978240), (11240, 1869824), (11264, 1865840), (12364, 1699840), (13280, 1582592), (14080, 1492672), (14608, 1438720), (15455, 1359872), (16384, 1282765), (17984, 1168640), (18260, 1150976), (20480, 1026212), (21248, 989120), (22480, 934912), (22528, 932920), (23323, 901120), (24728, 849920), (26560, 791296), (28160, 746336), (29216, 719360), (30910, 679936), (35968, 584320), (36520, 575488), (40960, 513106), (42496, 494560), (44960, 467456), (45056, 466460), (46646, 450560), (49456, 424960), (53120, 395648), (56320, 373168), (58432, 359680), (61820, 339968), (71936, 292160), (73040, 287744), (81920, 256553), (84992, 247280), (89920, 233728), (90112, 233230), (93292, 225280), (98912, 212480), (106240, 197824), (112640, 186584), (116615, 180224), (116864, 179840), (123640, 169984), (143872, 146080)]