72800360

素因数分解:

$2^3\times 5^1\times {\mathrm{1820009}}^1$

素因数の和:1820020

約数の個数: 16

約数和(自身を含む): 163800900

約数和(自身を除く): 91000540

約数列:

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

約数ペア:

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