72015820

素因数分解:

$2^2\times 5^1\times {\mathrm{3600791}}^1$

素因数の和:3600800

約数の個数: 12

約数和(自身を含む): 151233264

約数和(自身を除く): 79217444

約数列:

[1, 2, 4, 5, 10, 20, 3600791, 7201582, 14403164, 18003955, 36007910, 72015820]

約数ペア:

[(1, 72015820), (2, 36007910), (4, 18003955), (5, 14403164), (10, 7201582), (20, 3600791)]