72120860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{515149}}^1$

素因数の和:515165

約数の個数: 24

約数和(自身を含む): 173090400

約数和(自身を除く): 100969540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 515149, 1030298, 2060596, 2575745, 3606043, 5151490, 7212086, 10302980, 14424172, 18030215, 36060430, 72120860]

約数ペア:

[(1, 72120860), (2, 36060430), (4, 18030215), (5, 14424172), (7, 10302980), (10, 7212086), (14, 5151490), (20, 3606043), (28, 2575745), (35, 2060596), (70, 1030298), (140, 515149)]