20914888320

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{28591}}^1$

素因数の和:28743

約数の個数: 192

約数和(自身を含む): 72792944640

約数和(自身を除く): 51878056320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 127, 128, 144, 160, 180, 192, 240, 254, 288, 320, 360, 381, 384, 480, 508, 576, 635, 640, 720, 762, 960, 1016, 1143, 1152, 1270, 1440, 1524, 1905, 1920, 2032, 2286, 2540, 2880, 3048, 3810, 4064, 4572, 5080, 5715, 5760, 6096, 7620, 8128, 9144, 10160, 11430, 12192, 15240, 16256, 18288, 20320, 22860, 24384, 28591, 30480, 36576, 40640, 45720, 48768, 57182, 60960, 73152, 81280, 85773, 91440, 114364, 121920, 142955, 146304, 171546, 182880, 228728, 243840, 257319, 285910, 343092, 365760, 428865, 457456, 514638, 571820, 686184, 731520, 857730, 914912, 1029276, 1143640, 1286595, 1372368, 1715460, 1829824, 2058552, 2287280, 2573190, 2744736, 3430920, 3631057, 3659648, 4117104, 4574560, 5146380, 5489472, 6861840, 7262114, 8234208, 9149120, 10292760, 10893171, 10978944, 13723680, 14524228, 16468416, 18155285, 18298240, 20585520, 21786342, 27447360, 29048456, 32679513, 32936832, 36310570, 41171040, 43572684, 54465855, 54894720, 58096912, 65359026, 72621140, 82342080, 87145368, 108931710, 116193824, 130718052, 145242280, 163397565, 164684160, 174290736, 217863420, 232387648, 261436104, 290484560, 326795130, 348581472, 435726840, 464775296, 522872208, 580969120, 653590260, 697162944, 871453680, 1045744416, 1161938240, 1307180520, 1394325888, 1742907360, 2091488832, 2323876480, 2614361040, 3485814720, 4182977664, 5228722080, 6971629440, 10457444160, 20914888320]

約数ペア:

[(1, 20914888320), (2, 10457444160), (3, 6971629440), (4, 5228722080), (5, 4182977664), (6, 3485814720), (8, 2614361040), (9, 2323876480), (10, 2091488832), (12, 1742907360), (15, 1394325888), (16, 1307180520), (18, 1161938240), (20, 1045744416), (24, 871453680), (30, 697162944), (32, 653590260), (36, 580969120), (40, 522872208), (45, 464775296), (48, 435726840), (60, 348581472), (64, 326795130), (72, 290484560), (80, 261436104), (90, 232387648), (96, 217863420), (120, 174290736), (127, 164684160), (128, 163397565), (144, 145242280), (160, 130718052), (180, 116193824), (192, 108931710), (240, 87145368), (254, 82342080), (288, 72621140), (320, 65359026), (360, 58096912), (381, 54894720), (384, 54465855), (480, 43572684), (508, 41171040), (576, 36310570), (635, 32936832), (640, 32679513), (720, 29048456), (762, 27447360), (960, 21786342), (1016, 20585520), (1143, 18298240), (1152, 18155285), (1270, 16468416), (1440, 14524228), (1524, 13723680), (1905, 10978944), (1920, 10893171), (2032, 10292760), (2286, 9149120), (2540, 8234208), (2880, 7262114), (3048, 6861840), (3810, 5489472), (4064, 5146380), (4572, 4574560), (5080, 4117104), (5715, 3659648), (5760, 3631057), (6096, 3430920), (7620, 2744736), (8128, 2573190), (9144, 2287280), (10160, 2058552), (11430, 1829824), (12192, 1715460), (15240, 1372368), (16256, 1286595), (18288, 1143640), (20320, 1029276), (22860, 914912), (24384, 857730), (28591, 731520), (30480, 686184), (36576, 571820), (40640, 514638), (45720, 457456), (48768, 428865), (57182, 365760), (60960, 343092), (73152, 285910), (81280, 257319), (85773, 243840), (91440, 228728), (114364, 182880), (121920, 171546), (142955, 146304)]