72091280

素因数分解:

$2^4\times 5^1\times {\mathrm{901141}}^1$

素因数の和:901154

約数の個数: 20

約数和(自身を含む): 167612412

約数和(自身を除く): 95521132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 901141, 1802282, 3604564, 4505705, 7209128, 9011410, 14418256, 18022820, 36045640, 72091280]

約数ペア:

[(1, 72091280), (2, 36045640), (4, 18022820), (5, 14418256), (8, 9011410), (10, 7209128), (16, 4505705), (20, 3604564), (40, 1802282), (80, 901141)]