About the Number

81013800

81013799 ← → 81013801

2進数表記:100110101000010110000101000

漢数字表記:八千百一万三千八百

素因数分解:

2 3 × 3 1 × 5 2 × 7 1 × 19289 1

素因数の和:19315
約数の個数: 96
約数和(自身を含む): 287035200
約数和(自身を除く): 206021400

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 19289, 38578, 57867, 77156, 96445, 115734, 135023, 154312, 192890, 231468, 270046, 289335, 385780, 405069, 462936, 482225, 540092, 578670, 675115, 771560, 810138, 964450, 1080184, 1157340, 1350230, 1446675, 1620276, 1928900, 2025345, 2314680, 2700460, 2893350, 3240552, 3375575, 3857800, 4050690, 5400920, 5786700, 6751150, 8101380, 10126725, 11573400, 13502300, 16202760, 20253450, 27004600, 40506900, 81013800]

約数ペア:
[(1, 81013800), (2, 40506900), (3, 27004600), (4, 20253450), (5, 16202760), (6, 13502300), (7, 11573400), (8, 10126725), (10, 8101380), (12, 6751150), (14, 5786700), (15, 5400920), (20, 4050690), (21, 3857800), (24, 3375575), (25, 3240552), (28, 2893350), (30, 2700460), (35, 2314680), (40, 2025345), (42, 1928900), (50, 1620276), (56, 1446675), (60, 1350230), (70, 1157340), (75, 1080184), (84, 964450), (100, 810138), (105, 771560), (120, 675115), (140, 578670), (150, 540092), (168, 482225), (175, 462936), (200, 405069), (210, 385780), (280, 289335), (300, 270046), (350, 231468), (420, 192890), (525, 154312), (600, 135023), (700, 115734), (840, 96445), (1050, 77156), (1400, 57867), (2100, 38578), (4200, 19289)]

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