28557700

素因数分解:

$2^2\times 5^2\times {\mathrm{353}}^1\times {\mathrm{809}}^1$

素因数の和:1176

約数の個数: 36

約数和(自身を含む): 62222580

約数和(自身を除く): 33664880

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 353, 706, 809, 1412, 1618, 1765, 3236, 3530, 4045, 7060, 8090, 8825, 16180, 17650, 20225, 35300, 40450, 80900, 285577, 571154, 1142308, 1427885, 2855770, 5711540, 7139425, 14278850, 28557700]

約数ペア:

[(1, 28557700), (2, 14278850), (4, 7139425), (5, 5711540), (10, 2855770), (20, 1427885), (25, 1142308), (50, 571154), (100, 285577), (353, 80900), (706, 40450), (809, 35300), (1412, 20225), (1618, 17650), (1765, 16180), (3236, 8825), (3530, 8090), (4045, 7060)]