81020800

素因数分解:

$2^7\times 5^2\times 7^1\times {\mathrm{3617}}^1$

素因数の和:3648

約数の個数: 96

約数和(自身を含む): 228802320

約数和(自身を除く): 147781520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 280, 320, 350, 400, 448, 560, 640, 700, 800, 896, 1120, 1400, 1600, 2240, 2800, 3200, 3617, 4480, 5600, 7234, 11200, 14468, 18085, 22400, 25319, 28936, 36170, 50638, 57872, 72340, 90425, 101276, 115744, 126595, 144680, 180850, 202552, 231488, 253190, 289360, 361700, 405104, 462976, 506380, 578720, 632975, 723400, 810208, 1012760, 1157440, 1265950, 1446800, 1620416, 2025520, 2314880, 2531900, 2893600, 3240832, 4051040, 5063800, 5787200, 8102080, 10127600, 11574400, 16204160, 20255200, 40510400, 81020800]

約数ペア:

[(1, 81020800), (2, 40510400), (4, 20255200), (5, 16204160), (7, 11574400), (8, 10127600), (10, 8102080), (14, 5787200), (16, 5063800), (20, 4051040), (25, 3240832), (28, 2893600), (32, 2531900), (35, 2314880), (40, 2025520), (50, 1620416), (56, 1446800), (64, 1265950), (70, 1157440), (80, 1012760), (100, 810208), (112, 723400), (128, 632975), (140, 578720), (160, 506380), (175, 462976), (200, 405104), (224, 361700), (280, 289360), (320, 253190), (350, 231488), (400, 202552), (448, 180850), (560, 144680), (640, 126595), (700, 115744), (800, 101276), (896, 90425), (1120, 72340), (1400, 57872), (1600, 50638), (2240, 36170), (2800, 28936), (3200, 25319), (3617, 22400), (4480, 18085), (5600, 14468), (7234, 11200)]