20620373760

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{255709}}^1$

素因数の和:255743

約数の個数: 216

約数和(自身を含む): 81536713440

約数和(自身を除く): 60916339680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3360, 3840, 4032, 4480, 5040, 5376, 5760, 6720, 8064, 8960, 10080, 11520, 13440, 16128, 20160, 26880, 40320, 80640, 255709, 511418, 767127, 1022836, 1278545, 1534254, 1789963, 2045672, 2301381, 2557090, 3068508, 3579926, 3835635, 4091344, 4602762, 5114180, 5369889, 6137016, 7159852, 7671270, 8182688, 8949815, 9205524, 10228360, 10739778, 11506905, 12274032, 14319704, 15342540, 16109667, 16365376, 17899630, 18411048, 20456720, 21479556, 23013810, 24548064, 26849445, 28639408, 30685080, 32219334, 32730752, 35799260, 36822096, 40913440, 42959112, 46027620, 49096128, 53698890, 57278816, 61370160, 64438668, 65461504, 71598520, 73644192, 80548335, 81826880, 85918224, 92055240, 98192256, 107397780, 114557632, 122740320, 128877336, 143197040, 147288384, 161096670, 163653760, 171836448, 184110480, 196384512, 214795560, 229115264, 245480640, 257754672, 286394080, 294576768, 322193340, 327307520, 343672896, 368220960, 429591120, 458230528, 490961280, 515509344, 572788160, 589153536, 644386680, 687345792, 736441920, 859182240, 981922560, 1031018688, 1145576320, 1288773360, 1374691584, 1472883840, 1718364480, 2062037376, 2291152640, 2577546720, 2945767680, 3436728960, 4124074752, 5155093440, 6873457920, 10310186880, 20620373760]

約数ペア:

[(1, 20620373760), (2, 10310186880), (3, 6873457920), (4, 5155093440), (5, 4124074752), (6, 3436728960), (7, 2945767680), (8, 2577546720), (9, 2291152640), (10, 2062037376), (12, 1718364480), (14, 1472883840), (15, 1374691584), (16, 1288773360), (18, 1145576320), (20, 1031018688), (21, 981922560), (24, 859182240), (28, 736441920), (30, 687345792), (32, 644386680), (35, 589153536), (36, 572788160), (40, 515509344), (42, 490961280), (45, 458230528), (48, 429591120), (56, 368220960), (60, 343672896), (63, 327307520), (64, 322193340), (70, 294576768), (72, 286394080), (80, 257754672), (84, 245480640), (90, 229115264), (96, 214795560), (105, 196384512), (112, 184110480), (120, 171836448), (126, 163653760), (128, 161096670), (140, 147288384), (144, 143197040), (160, 128877336), (168, 122740320), (180, 114557632), (192, 107397780), (210, 98192256), (224, 92055240), (240, 85918224), (252, 81826880), (256, 80548335), (280, 73644192), (288, 71598520), (315, 65461504), (320, 64438668), (336, 61370160), (360, 57278816), (384, 53698890), (420, 49096128), (448, 46027620), (480, 42959112), (504, 40913440), (560, 36822096), (576, 35799260), (630, 32730752), (640, 32219334), (672, 30685080), (720, 28639408), (768, 26849445), (840, 24548064), (896, 23013810), (960, 21479556), (1008, 20456720), (1120, 18411048), (1152, 17899630), (1260, 16365376), (1280, 16109667), (1344, 15342540), (1440, 14319704), (1680, 12274032), (1792, 11506905), (1920, 10739778), (2016, 10228360), (2240, 9205524), (2304, 8949815), (2520, 8182688), (2688, 7671270), (2880, 7159852), (3360, 6137016), (3840, 5369889), (4032, 5114180), (4480, 4602762), (5040, 4091344), (5376, 3835635), (5760, 3579926), (6720, 3068508), (8064, 2557090), (8960, 2301381), (10080, 2045672), (11520, 1789963), (13440, 1534254), (16128, 1278545), (20160, 1022836), (26880, 767127), (40320, 511418), (80640, 255709)]