280069720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1000249}}^1$

素因数の和:1000267

約数の個数: 32

約数和(自身を含む): 720180000

約数和(自身を除く): 440110280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1000249, 2000498, 4000996, 5001245, 7001743, 8001992, 10002490, 14003486, 20004980, 28006972, 35008715, 40009960, 56013944, 70017430, 140034860, 280069720]

約数ペア:

[(1, 280069720), (2, 140034860), (4, 70017430), (5, 56013944), (7, 40009960), (8, 35008715), (10, 28006972), (14, 20004980), (20, 14003486), (28, 10002490), (35, 8001992), (40, 7001743), (56, 5001245), (70, 4000996), (140, 2000498), (280, 1000249)]