21956480

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:81

約数の個数: 192

約数和(自身を含む): 67197600

約数和(自身を除く): 45241120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 29, 32, 35, 40, 52, 56, 58, 64, 65, 70, 80, 91, 104, 112, 116, 128, 130, 140, 145, 160, 169, 182, 203, 208, 224, 232, 260, 280, 290, 320, 338, 364, 377, 406, 416, 448, 455, 464, 520, 560, 580, 640, 676, 728, 754, 812, 832, 845, 896, 910, 928, 1015, 1040, 1120, 1160, 1183, 1352, 1456, 1508, 1624, 1664, 1690, 1820, 1856, 1885, 2030, 2080, 2240, 2320, 2366, 2639, 2704, 2912, 3016, 3248, 3380, 3640, 3712, 3770, 4060, 4160, 4480, 4640, 4732, 4901, 5278, 5408, 5824, 5915, 6032, 6496, 6760, 7280, 7540, 8120, 8320, 9280, 9464, 9802, 10556, 10816, 11648, 11830, 12064, 12992, 13195, 13520, 14560, 15080, 16240, 18560, 18928, 19604, 21112, 21632, 23660, 24128, 24505, 25984, 26390, 27040, 29120, 30160, 32480, 34307, 37856, 39208, 42224, 47320, 48256, 49010, 52780, 54080, 58240, 60320, 64960, 68614, 75712, 78416, 84448, 94640, 98020, 105560, 108160, 120640, 129920, 137228, 151424, 156832, 168896, 171535, 189280, 196040, 211120, 241280, 274456, 313664, 337792, 343070, 378560, 392080, 422240, 548912, 627328, 686140, 757120, 784160, 844480, 1097824, 1372280, 1568320, 1688960, 2195648, 2744560, 3136640, 4391296, 5489120, 10978240, 21956480]

約数ペア:

[(1, 21956480), (2, 10978240), (4, 5489120), (5, 4391296), (7, 3136640), (8, 2744560), (10, 2195648), (13, 1688960), (14, 1568320), (16, 1372280), (20, 1097824), (26, 844480), (28, 784160), (29, 757120), (32, 686140), (35, 627328), (40, 548912), (52, 422240), (56, 392080), (58, 378560), (64, 343070), (65, 337792), (70, 313664), (80, 274456), (91, 241280), (104, 211120), (112, 196040), (116, 189280), (128, 171535), (130, 168896), (140, 156832), (145, 151424), (160, 137228), (169, 129920), (182, 120640), (203, 108160), (208, 105560), (224, 98020), (232, 94640), (260, 84448), (280, 78416), (290, 75712), (320, 68614), (338, 64960), (364, 60320), (377, 58240), (406, 54080), (416, 52780), (448, 49010), (455, 48256), (464, 47320), (520, 42224), (560, 39208), (580, 37856), (640, 34307), (676, 32480), (728, 30160), (754, 29120), (812, 27040), (832, 26390), (845, 25984), (896, 24505), (910, 24128), (928, 23660), (1015, 21632), (1040, 21112), (1120, 19604), (1160, 18928), (1183, 18560), (1352, 16240), (1456, 15080), (1508, 14560), (1624, 13520), (1664, 13195), (1690, 12992), (1820, 12064), (1856, 11830), (1885, 11648), (2030, 10816), (2080, 10556), (2240, 9802), (2320, 9464), (2366, 9280), (2639, 8320), (2704, 8120), (2912, 7540), (3016, 7280), (3248, 6760), (3380, 6496), (3640, 6032), (3712, 5915), (3770, 5824), (4060, 5408), (4160, 5278), (4480, 4901), (4640, 4732)]