2721800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 6547200

約数和(自身を除く): 3825400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 439, 620, 775, 878, 1240, 1550, 1756, 2195, 3100, 3512, 4390, 6200, 8780, 10975, 13609, 17560, 21950, 27218, 43900, 54436, 68045, 87800, 108872, 136090, 272180, 340225, 544360, 680450, 1360900, 2721800]

約数ペア:

[(1, 2721800), (2, 1360900), (4, 680450), (5, 544360), (8, 340225), (10, 272180), (20, 136090), (25, 108872), (31, 87800), (40, 68045), (50, 54436), (62, 43900), (100, 27218), (124, 21950), (155, 17560), (200, 13609), (248, 10975), (310, 8780), (439, 6200), (620, 4390), (775, 3512), (878, 3100), (1240, 2195), (1550, 1756)]