72121040

素因数分解:

$2^4\times 5^1\times {\mathrm{901513}}^1$

素因数の和:901526

約数の個数: 20

約数和(自身を含む): 167681604

約数和(自身を除く): 95560564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 901513, 1803026, 3606052, 4507565, 7212104, 9015130, 14424208, 18030260, 36060520, 72121040]

約数ペア:

[(1, 72121040), (2, 36060520), (4, 18030260), (5, 14424208), (8, 9015130), (10, 7212104), (16, 4507565), (20, 3606052), (40, 1803026), (80, 901513)]