12345655

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20749}}^1$

素因数の和:20778

約数の個数: 16

約数和(自身を含む): 17928000

約数和(自身を除く): 5582345

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 20749, 103745, 145243, 352733, 726215, 1763665, 2469131, 12345655]

約数ペア:

[(1, 12345655), (5, 2469131), (7, 1763665), (17, 726215), (35, 352733), (85, 145243), (119, 103745), (595, 20749)]