72111880

素因数分解:

$2^3\times 5^1\times {\mathrm{1802797}}^1$

素因数の和:1802808

約数の個数: 16

約数和(自身を含む): 162251820

約数和(自身を除く): 90139940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1802797, 3605594, 7211188, 9013985, 14422376, 18027970, 36055940, 72111880]

約数ペア:

[(1, 72111880), (2, 36055940), (4, 18027970), (5, 14422376), (8, 9013985), (10, 7211188), (20, 3605594), (40, 1802797)]