640579860

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{1186259}}^1$

素因数の和:1186277

約数の個数: 48

約数和(自身を含む): 1992916800

約数和(自身を除く): 1352336940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 1186259, 2372518, 3558777, 4745036, 5931295, 7117554, 10676331, 11862590, 14235108, 17793885, 21352662, 23725180, 32028993, 35587770, 42705324, 53381655, 64057986, 71175540, 106763310, 128115972, 160144965, 213526620, 320289930, 640579860]

約数ペア:

[(1, 640579860), (2, 320289930), (3, 213526620), (4, 160144965), (5, 128115972), (6, 106763310), (9, 71175540), (10, 64057986), (12, 53381655), (15, 42705324), (18, 35587770), (20, 32028993), (27, 23725180), (30, 21352662), (36, 17793885), (45, 14235108), (54, 11862590), (60, 10676331), (90, 7117554), (108, 5931295), (135, 4745036), (180, 3558777), (270, 2372518), (540, 1186259)]