72505040

素因数分解:

$2^4\times 5^1\times {\mathrm{906313}}^1$

素因数の和:906326

約数の個数: 20

約数和(自身を含む): 168574404

約数和(自身を除く): 96069364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 906313, 1812626, 3625252, 4531565, 7250504, 9063130, 14501008, 18126260, 36252520, 72505040]

約数ペア:

[(1, 72505040), (2, 36252520), (4, 18126260), (5, 14501008), (8, 9063130), (10, 7250504), (16, 4531565), (20, 3625252), (40, 1812626), (80, 906313)]