20740804480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:649

約数の個数: 256

約数和(自身を含む): 55856848320

約数和(自身を除く): 35116043840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 181, 205, 220, 320, 328, 352, 362, 397, 410, 440, 451, 640, 656, 704, 724, 794, 820, 880, 902, 905, 1312, 1408, 1448, 1588, 1640, 1760, 1804, 1810, 1985, 1991, 2255, 2624, 2896, 3176, 3280, 3520, 3608, 3620, 3970, 3982, 4367, 4510, 5248, 5792, 6352, 6560, 7040, 7216, 7240, 7421, 7940, 7964, 8734, 9020, 9955, 11584, 12704, 13120, 14432, 14480, 14842, 15880, 15928, 16277, 17468, 18040, 19910, 21835, 23168, 25408, 26240, 28864, 28960, 29684, 31760, 31856, 32554, 34936, 36080, 37105, 39820, 43670, 50816, 57728, 57920, 59368, 63520, 63712, 65108, 69872, 71857, 72160, 74210, 79640, 81385, 81631, 87340, 115840, 118736, 127040, 127424, 130216, 139744, 143714, 144320, 148420, 159280, 162770, 163262, 174680, 179047, 237472, 254080, 254848, 260432, 279488, 287428, 288640, 296840, 318560, 325540, 326524, 349360, 358094, 359285, 408155, 474944, 520864, 558976, 574856, 593680, 637120, 651080, 653048, 698720, 716188, 718570, 790427, 816310, 895235, 949888, 1041728, 1149712, 1187360, 1274240, 1302160, 1306096, 1397440, 1432376, 1437140, 1580854, 1632620, 1790470, 2083456, 2299424, 2374720, 2604320, 2612192, 2794880, 2864752, 2874280, 2946137, 3161708, 3265240, 3580940, 3952135, 4598848, 4749440, 5208640, 5224384, 5729504, 5748560, 5892274, 6323416, 6530480, 7161880, 7904270, 9197696, 10417280, 10448768, 11459008, 11497120, 11784548, 12646832, 13060960, 14323760, 14730685, 15808540, 22918016, 22994240, 23569096, 25293664, 26121920, 28647520, 29461370, 31617080, 32407507, 45988480, 47138192, 50587328, 52243840, 57295040, 58922740, 63234160, 64815014, 94276384, 101174656, 114590080, 117845480, 126468320, 129630028, 162037535, 188552768, 235690960, 252936640, 259260056, 324075070, 377105536, 471381920, 505873280, 518520112, 648150140, 942763840, 1037040224, 1296300280, 1885527680, 2074080448, 2592600560, 4148160896, 5185201120, 10370402240, 20740804480]

約数ペア:

[(1, 20740804480), (2, 10370402240), (4, 5185201120), (5, 4148160896), (8, 2592600560), (10, 2074080448), (11, 1885527680), (16, 1296300280), (20, 1037040224), (22, 942763840), (32, 648150140), (40, 518520112), (41, 505873280), (44, 471381920), (55, 377105536), (64, 324075070), (80, 259260056), (82, 252936640), (88, 235690960), (110, 188552768), (128, 162037535), (160, 129630028), (164, 126468320), (176, 117845480), (181, 114590080), (205, 101174656), (220, 94276384), (320, 64815014), (328, 63234160), (352, 58922740), (362, 57295040), (397, 52243840), (410, 50587328), (440, 47138192), (451, 45988480), (640, 32407507), (656, 31617080), (704, 29461370), (724, 28647520), (794, 26121920), (820, 25293664), (880, 23569096), (902, 22994240), (905, 22918016), (1312, 15808540), (1408, 14730685), (1448, 14323760), (1588, 13060960), (1640, 12646832), (1760, 11784548), (1804, 11497120), (1810, 11459008), (1985, 10448768), (1991, 10417280), (2255, 9197696), (2624, 7904270), (2896, 7161880), (3176, 6530480), (3280, 6323416), (3520, 5892274), (3608, 5748560), (3620, 5729504), (3970, 5224384), (3982, 5208640), (4367, 4749440), (4510, 4598848), (5248, 3952135), (5792, 3580940), (6352, 3265240), (6560, 3161708), (7040, 2946137), (7216, 2874280), (7240, 2864752), (7421, 2794880), (7940, 2612192), (7964, 2604320), (8734, 2374720), (9020, 2299424), (9955, 2083456), (11584, 1790470), (12704, 1632620), (13120, 1580854), (14432, 1437140), (14480, 1432376), (14842, 1397440), (15880, 1306096), (15928, 1302160), (16277, 1274240), (17468, 1187360), (18040, 1149712), (19910, 1041728), (21835, 949888), (23168, 895235), (25408, 816310), (26240, 790427), (28864, 718570), (28960, 716188), (29684, 698720), (31760, 653048), (31856, 651080), (32554, 637120), (34936, 593680), (36080, 574856), (37105, 558976), (39820, 520864), (43670, 474944), (50816, 408155), (57728, 359285), (57920, 358094), (59368, 349360), (63520, 326524), (63712, 325540), (65108, 318560), (69872, 296840), (71857, 288640), (72160, 287428), (74210, 279488), (79640, 260432), (81385, 254848), (81631, 254080), (87340, 237472), (115840, 179047), (118736, 174680), (127040, 163262), (127424, 162770), (130216, 159280), (139744, 148420), (143714, 144320)]