61872440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220973}}^1$

素因数の和:220991

約数の個数: 32

約数和(自身を含む): 159101280

約数和(自身を除く): 97228840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 220973, 441946, 883892, 1104865, 1546811, 1767784, 2209730, 3093622, 4419460, 6187244, 7734055, 8838920, 12374488, 15468110, 30936220, 61872440]

約数ペア:

[(1, 61872440), (2, 30936220), (4, 15468110), (5, 12374488), (7, 8838920), (8, 7734055), (10, 6187244), (14, 4419460), (20, 3093622), (28, 2209730), (35, 1767784), (40, 1546811), (56, 1104865), (70, 883892), (140, 441946), (280, 220973)]