15123220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{108023}}^1$

素因数の和:108039

約数の個数: 24

約数和(自身を含む): 36296064

約数和(自身を除く): 21172844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 108023, 216046, 432092, 540115, 756161, 1080230, 1512322, 2160460, 3024644, 3780805, 7561610, 15123220]

約数ペア:

[(1, 15123220), (2, 7561610), (4, 3780805), (5, 3024644), (7, 2160460), (10, 1512322), (14, 1080230), (20, 756161), (28, 540115), (35, 432092), (70, 216046), (140, 108023)]