72570440

素因数分解:

$2^3\times 5^1\times {\mathrm{1814261}}^1$

素因数の和:1814272

約数の個数: 16

約数和(自身を含む): 163283580

約数和(自身を除く): 90713140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1814261, 3628522, 7257044, 9071305, 14514088, 18142610, 36285220, 72570440]

約数ペア:

[(1, 72570440), (2, 36285220), (4, 18142610), (5, 14514088), (8, 9071305), (10, 7257044), (20, 3628522), (40, 1814261)]