20501600

素因数分解:

$2^5\times 5^2\times 7^2\times {\mathrm{523}}^1$

素因数の和:557

約数の個数: 108

約数和(自身を含む): 58332204

約数和(自身を除く): 37830604

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 160, 175, 196, 200, 224, 245, 280, 350, 392, 400, 490, 523, 560, 700, 784, 800, 980, 1046, 1120, 1225, 1400, 1568, 1960, 2092, 2450, 2615, 2800, 3661, 3920, 4184, 4900, 5230, 5600, 7322, 7840, 8368, 9800, 10460, 13075, 14644, 16736, 18305, 19600, 20920, 25627, 26150, 29288, 36610, 39200, 41840, 51254, 52300, 58576, 73220, 83680, 91525, 102508, 104600, 117152, 128135, 146440, 183050, 205016, 209200, 256270, 292880, 366100, 410032, 418400, 512540, 585760, 640675, 732200, 820064, 1025080, 1281350, 1464400, 2050160, 2562700, 2928800, 4100320, 5125400, 10250800, 20501600]

約数ペア:

[(1, 20501600), (2, 10250800), (4, 5125400), (5, 4100320), (7, 2928800), (8, 2562700), (10, 2050160), (14, 1464400), (16, 1281350), (20, 1025080), (25, 820064), (28, 732200), (32, 640675), (35, 585760), (40, 512540), (49, 418400), (50, 410032), (56, 366100), (70, 292880), (80, 256270), (98, 209200), (100, 205016), (112, 183050), (140, 146440), (160, 128135), (175, 117152), (196, 104600), (200, 102508), (224, 91525), (245, 83680), (280, 73220), (350, 58576), (392, 52300), (400, 51254), (490, 41840), (523, 39200), (560, 36610), (700, 29288), (784, 26150), (800, 25627), (980, 20920), (1046, 19600), (1120, 18305), (1225, 16736), (1400, 14644), (1568, 13075), (1960, 10460), (2092, 9800), (2450, 8368), (2615, 7840), (2800, 7322), (3661, 5600), (3920, 5230), (4184, 4900)]