21970760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78467}}^1$

素因数の和:78485

約数の個数: 32

約数和(自身を含む): 56496960

約数和(自身を除く): 34526200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78467, 156934, 313868, 392335, 549269, 627736, 784670, 1098538, 1569340, 2197076, 2746345, 3138680, 4394152, 5492690, 10985380, 21970760]

約数ペア:

[(1, 21970760), (2, 10985380), (4, 5492690), (5, 4394152), (7, 3138680), (8, 2746345), (10, 2197076), (14, 1569340), (20, 1098538), (28, 784670), (35, 627736), (40, 549269), (56, 392335), (70, 313868), (140, 156934), (280, 78467)]