20691000

素因数分解:

$2^3\times 3^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1$

素因数の和:68

約数の個数: 288

約数和(自身を含む): 80917200

約数和(自身を除く): 60226200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 19, 20, 22, 24, 25, 30, 33, 36, 38, 40, 44, 45, 50, 55, 57, 60, 66, 72, 75, 76, 88, 90, 95, 99, 100, 110, 114, 120, 121, 125, 132, 150, 152, 165, 171, 180, 190, 198, 200, 209, 220, 225, 228, 242, 250, 264, 275, 285, 300, 330, 342, 360, 363, 375, 380, 396, 418, 440, 450, 456, 475, 484, 495, 500, 550, 570, 600, 605, 627, 660, 684, 726, 750, 760, 792, 825, 836, 855, 900, 950, 968, 990, 1000, 1045, 1089, 1100, 1125, 1140, 1210, 1254, 1320, 1368, 1375, 1425, 1452, 1500, 1650, 1672, 1710, 1800, 1815, 1881, 1900, 1980, 2090, 2178, 2200, 2250, 2280, 2299, 2375, 2420, 2475, 2508, 2750, 2850, 2904, 3000, 3025, 3135, 3300, 3420, 3630, 3762, 3800, 3960, 4125, 4180, 4275, 4356, 4500, 4598, 4750, 4840, 4950, 5016, 5225, 5445, 5500, 5700, 6050, 6270, 6600, 6840, 6897, 7125, 7260, 7524, 8250, 8360, 8550, 8712, 9000, 9075, 9196, 9405, 9500, 9900, 10450, 10890, 11000, 11400, 11495, 12100, 12375, 12540, 13794, 14250, 14520, 15048, 15125, 15675, 16500, 17100, 18150, 18392, 18810, 19000, 19800, 20691, 20900, 21375, 21780, 22990, 24200, 24750, 25080, 26125, 27225, 27588, 28500, 30250, 31350, 33000, 34200, 34485, 36300, 37620, 41382, 41800, 42750, 43560, 45375, 45980, 47025, 49500, 52250, 54450, 55176, 57000, 57475, 60500, 62700, 68970, 72600, 75240, 78375, 82764, 85500, 90750, 91960, 94050, 99000, 103455, 104500, 108900, 114950, 121000, 125400, 136125, 137940, 156750, 165528, 171000, 172425, 181500, 188100, 206910, 209000, 217800, 229900, 235125, 272250, 275880, 287375, 313500, 344850, 363000, 376200, 413820, 459800, 470250, 517275, 544500, 574750, 627000, 689700, 827640, 862125, 940500, 1034550, 1089000, 1149500, 1379400, 1724250, 1881000, 2069100, 2299000, 2586375, 3448500, 4138200, 5172750, 6897000, 10345500, 20691000]

約数ペア:

[(1, 20691000), (2, 10345500), (3, 6897000), (4, 5172750), (5, 4138200), (6, 3448500), (8, 2586375), (9, 2299000), (10, 2069100), (11, 1881000), (12, 1724250), (15, 1379400), (18, 1149500), (19, 1089000), (20, 1034550), (22, 940500), (24, 862125), (25, 827640), (30, 689700), (33, 627000), (36, 574750), (38, 544500), (40, 517275), (44, 470250), (45, 459800), (50, 413820), (55, 376200), (57, 363000), (60, 344850), (66, 313500), (72, 287375), (75, 275880), (76, 272250), (88, 235125), (90, 229900), (95, 217800), (99, 209000), (100, 206910), (110, 188100), (114, 181500), (120, 172425), (121, 171000), (125, 165528), (132, 156750), (150, 137940), (152, 136125), (165, 125400), (171, 121000), (180, 114950), (190, 108900), (198, 104500), (200, 103455), (209, 99000), (220, 94050), (225, 91960), (228, 90750), (242, 85500), (250, 82764), (264, 78375), (275, 75240), (285, 72600), (300, 68970), (330, 62700), (342, 60500), (360, 57475), (363, 57000), (375, 55176), (380, 54450), (396, 52250), (418, 49500), (440, 47025), (450, 45980), (456, 45375), (475, 43560), (484, 42750), (495, 41800), (500, 41382), (550, 37620), (570, 36300), (600, 34485), (605, 34200), (627, 33000), (660, 31350), (684, 30250), (726, 28500), (750, 27588), (760, 27225), (792, 26125), (825, 25080), (836, 24750), (855, 24200), (900, 22990), (950, 21780), (968, 21375), (990, 20900), (1000, 20691), (1045, 19800), (1089, 19000), (1100, 18810), (1125, 18392), (1140, 18150), (1210, 17100), (1254, 16500), (1320, 15675), (1368, 15125), (1375, 15048), (1425, 14520), (1452, 14250), (1500, 13794), (1650, 12540), (1672, 12375), (1710, 12100), (1800, 11495), (1815, 11400), (1881, 11000), (1900, 10890), (1980, 10450), (2090, 9900), (2178, 9500), (2200, 9405), (2250, 9196), (2280, 9075), (2299, 9000), (2375, 8712), (2420, 8550), (2475, 8360), (2508, 8250), (2750, 7524), (2850, 7260), (2904, 7125), (3000, 6897), (3025, 6840), (3135, 6600), (3300, 6270), (3420, 6050), (3630, 5700), (3762, 5500), (3800, 5445), (3960, 5225), (4125, 5016), (4180, 4950), (4275, 4840), (4356, 4750), (4500, 4598)]