20295520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18121}}^1$

素因数の和:18143

約数の個数: 48

約数和(自身を含む): 54800928

約数和(自身を除く): 34505408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18121, 36242, 72484, 90605, 126847, 144968, 181210, 253694, 289936, 362420, 507388, 579872, 634235, 724840, 1014776, 1268470, 1449680, 2029552, 2536940, 2899360, 4059104, 5073880, 10147760, 20295520]

約数ペア:

[(1, 20295520), (2, 10147760), (4, 5073880), (5, 4059104), (7, 2899360), (8, 2536940), (10, 2029552), (14, 1449680), (16, 1268470), (20, 1014776), (28, 724840), (32, 634235), (35, 579872), (40, 507388), (56, 362420), (70, 289936), (80, 253694), (112, 181210), (140, 144968), (160, 126847), (224, 90605), (280, 72484), (560, 36242), (1120, 18121)]