20710800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{523}}^1$

素因数の和:558

約数の個数: 180

約数和(自身を含む): 78555984

約数和(自身を除く): 57845184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 25, 30, 33, 36, 40, 44, 45, 48, 50, 55, 60, 66, 72, 75, 80, 88, 90, 99, 100, 110, 120, 132, 144, 150, 165, 176, 180, 198, 200, 220, 225, 240, 264, 275, 300, 330, 360, 396, 400, 440, 450, 495, 523, 528, 550, 600, 660, 720, 792, 825, 880, 900, 990, 1046, 1100, 1200, 1320, 1569, 1584, 1650, 1800, 1980, 2092, 2200, 2475, 2615, 2640, 3138, 3300, 3600, 3960, 4184, 4400, 4707, 4950, 5230, 5753, 6276, 6600, 7845, 7920, 8368, 9414, 9900, 10460, 11506, 12552, 13075, 13200, 15690, 17259, 18828, 19800, 20920, 23012, 23535, 25104, 26150, 28765, 31380, 34518, 37656, 39225, 39600, 41840, 46024, 47070, 51777, 52300, 57530, 62760, 69036, 75312, 78450, 86295, 92048, 94140, 103554, 104600, 115060, 117675, 125520, 138072, 143825, 156900, 172590, 188280, 207108, 209200, 230120, 235350, 258885, 276144, 287650, 313800, 345180, 376560, 414216, 431475, 460240, 470700, 517770, 575300, 627600, 690360, 828432, 862950, 941400, 1035540, 1150600, 1294425, 1380720, 1725900, 1882800, 2071080, 2301200, 2588850, 3451800, 4142160, 5177700, 6903600, 10355400, 20710800]

約数ペア:

[(1, 20710800), (2, 10355400), (3, 6903600), (4, 5177700), (5, 4142160), (6, 3451800), (8, 2588850), (9, 2301200), (10, 2071080), (11, 1882800), (12, 1725900), (15, 1380720), (16, 1294425), (18, 1150600), (20, 1035540), (22, 941400), (24, 862950), (25, 828432), (30, 690360), (33, 627600), (36, 575300), (40, 517770), (44, 470700), (45, 460240), (48, 431475), (50, 414216), (55, 376560), (60, 345180), (66, 313800), (72, 287650), (75, 276144), (80, 258885), (88, 235350), (90, 230120), (99, 209200), (100, 207108), (110, 188280), (120, 172590), (132, 156900), (144, 143825), (150, 138072), (165, 125520), (176, 117675), (180, 115060), (198, 104600), (200, 103554), (220, 94140), (225, 92048), (240, 86295), (264, 78450), (275, 75312), (300, 69036), (330, 62760), (360, 57530), (396, 52300), (400, 51777), (440, 47070), (450, 46024), (495, 41840), (523, 39600), (528, 39225), (550, 37656), (600, 34518), (660, 31380), (720, 28765), (792, 26150), (825, 25104), (880, 23535), (900, 23012), (990, 20920), (1046, 19800), (1100, 18828), (1200, 17259), (1320, 15690), (1569, 13200), (1584, 13075), (1650, 12552), (1800, 11506), (1980, 10460), (2092, 9900), (2200, 9414), (2475, 8368), (2615, 7920), (2640, 7845), (3138, 6600), (3300, 6276), (3600, 5753), (3960, 5230), (4184, 4950), (4400, 4707)]