145242640

素因数分解:

$2^4\times 5^1\times {\mathrm{1815533}}^1$

素因数の和:1815546

約数の個数: 20

約数和(自身を含む): 337689324

約数和(自身を除く): 192446684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1815533, 3631066, 7262132, 9077665, 14524264, 18155330, 29048528, 36310660, 72621320, 145242640]

約数ペア:

[(1, 145242640), (2, 72621320), (4, 36310660), (5, 29048528), (8, 18155330), (10, 14524264), (16, 9077665), (20, 7262132), (40, 3631066), (80, 1815533)]