20918695680

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1815859}}^1$

素因数の和:1815886

約数の個数: 108

約数和(自身を含む): 72376547880

約数和(自身を除く): 51457852200

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, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520, 1815859, 3631718, 5447577, 7263436, 9079295, 10895154, 14526872, 16342731, 18158590, 21790308, 27237885, 29053744, 32685462, 36317180, 43580616, 54475770, 58107488, 65370924, 72634360, 81713655, 87161232, 108951540, 116214976, 130741848, 145268720, 163427310, 174322464, 217903080, 232429952, 261483696, 290537440, 326854620, 348644928, 435806160, 464859904, 522967392, 581074880, 653709240, 697289856, 871612320, 1045934784, 1162149760, 1307418480, 1394579712, 1743224640, 2091869568, 2324299520, 2614836960, 3486449280, 4183739136, 5229673920, 6972898560, 10459347840, 20918695680]

約数ペア:

[(1, 20918695680), (2, 10459347840), (3, 6972898560), (4, 5229673920), (5, 4183739136), (6, 3486449280), (8, 2614836960), (9, 2324299520), (10, 2091869568), (12, 1743224640), (15, 1394579712), (16, 1307418480), (18, 1162149760), (20, 1045934784), (24, 871612320), (30, 697289856), (32, 653709240), (36, 581074880), (40, 522967392), (45, 464859904), (48, 435806160), (60, 348644928), (64, 326854620), (72, 290537440), (80, 261483696), (90, 232429952), (96, 217903080), (120, 174322464), (128, 163427310), (144, 145268720), (160, 130741848), (180, 116214976), (192, 108951540), (240, 87161232), (256, 81713655), (288, 72634360), (320, 65370924), (360, 58107488), (384, 54475770), (480, 43580616), (576, 36317180), (640, 32685462), (720, 29053744), (768, 27237885), (960, 21790308), (1152, 18158590), (1280, 16342731), (1440, 14526872), (1920, 10895154), (2304, 9079295), (2880, 7263436), (3840, 5447577), (5760, 3631718), (11520, 1815859)]