145600720

素因数分解:

$2^4\times 5^1\times {\mathrm{1820009}}^1$

素因数の和:1820022

約数の個数: 20

約数和(自身を含む): 338521860

約数和(自身を除く): 192921140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1820009, 3640018, 7280036, 9100045, 14560072, 18200090, 29120144, 36400180, 72800360, 145600720]

約数ペア:

[(1, 145600720), (2, 72800360), (4, 36400180), (5, 29120144), (8, 18200090), (10, 14560072), (16, 9100045), (20, 7280036), (40, 3640018), (80, 1820009)]