20272000

素因数分解:

$2^7\times 5^3\times 7^1\times {\mathrm{181}}^1$

素因数の和:217

約数の個数: 128

約数和(自身を含む): 57919680

約数和(自身を除く): 37647680

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, 125, 128, 140, 160, 175, 181, 200, 224, 250, 280, 320, 350, 362, 400, 448, 500, 560, 640, 700, 724, 800, 875, 896, 905, 1000, 1120, 1267, 1400, 1448, 1600, 1750, 1810, 2000, 2240, 2534, 2800, 2896, 3200, 3500, 3620, 4000, 4480, 4525, 5068, 5600, 5792, 6335, 7000, 7240, 8000, 9050, 10136, 11200, 11584, 12670, 14000, 14480, 16000, 18100, 20272, 22400, 22625, 23168, 25340, 28000, 28960, 31675, 36200, 40544, 45250, 50680, 56000, 57920, 63350, 72400, 81088, 90500, 101360, 112000, 115840, 126700, 144800, 158375, 162176, 181000, 202720, 253400, 289600, 316750, 362000, 405440, 506800, 579200, 633500, 724000, 810880, 1013600, 1267000, 1448000, 2027200, 2534000, 2896000, 4054400, 5068000, 10136000, 20272000]

約数ペア:

[(1, 20272000), (2, 10136000), (4, 5068000), (5, 4054400), (7, 2896000), (8, 2534000), (10, 2027200), (14, 1448000), (16, 1267000), (20, 1013600), (25, 810880), (28, 724000), (32, 633500), (35, 579200), (40, 506800), (50, 405440), (56, 362000), (64, 316750), (70, 289600), (80, 253400), (100, 202720), (112, 181000), (125, 162176), (128, 158375), (140, 144800), (160, 126700), (175, 115840), (181, 112000), (200, 101360), (224, 90500), (250, 81088), (280, 72400), (320, 63350), (350, 57920), (362, 56000), (400, 50680), (448, 45250), (500, 40544), (560, 36200), (640, 31675), (700, 28960), (724, 28000), (800, 25340), (875, 23168), (896, 22625), (905, 22400), (1000, 20272), (1120, 18100), (1267, 16000), (1400, 14480), (1448, 14000), (1600, 12670), (1750, 11584), (1810, 11200), (2000, 10136), (2240, 9050), (2534, 8000), (2800, 7240), (2896, 7000), (3200, 6335), (3500, 5792), (3620, 5600), (4000, 5068), (4480, 4525)]