142788500

素因数分解:

$2^2\times 5^3\times {\mathrm{353}}^1\times {\mathrm{809}}^1$

素因数の和:1181

約数の個数: 48

約数和(自身を含む): 313120080

約数和(自身を除く): 170331580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 353, 500, 706, 809, 1412, 1618, 1765, 3236, 3530, 4045, 7060, 8090, 8825, 16180, 17650, 20225, 35300, 40450, 44125, 80900, 88250, 101125, 176500, 202250, 285577, 404500, 571154, 1142308, 1427885, 2855770, 5711540, 7139425, 14278850, 28557700, 35697125, 71394250, 142788500]

約数ペア:

[(1, 142788500), (2, 71394250), (4, 35697125), (5, 28557700), (10, 14278850), (20, 7139425), (25, 5711540), (50, 2855770), (100, 1427885), (125, 1142308), (250, 571154), (353, 404500), (500, 285577), (706, 202250), (809, 176500), (1412, 101125), (1618, 88250), (1765, 80900), (3236, 44125), (3530, 40450), (4045, 35300), (7060, 20225), (8090, 17650), (8825, 16180)]