2019988480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{394529}}^1$

素因数の和:394554

約数の個数: 44

約数和(自身を含む): 4845617460

約数和(自身を除く): 2825628980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 394529, 789058, 1578116, 1972645, 3156232, 3945290, 6312464, 7890580, 12624928, 15781160, 25249856, 31562320, 50499712, 63124640, 100999424, 126249280, 201998848, 252498560, 403997696, 504997120, 1009994240, 2019988480]

約数ペア:

[(1, 2019988480), (2, 1009994240), (4, 504997120), (5, 403997696), (8, 252498560), (10, 201998848), (16, 126249280), (20, 100999424), (32, 63124640), (40, 50499712), (64, 31562320), (80, 25249856), (128, 15781160), (160, 12624928), (256, 7890580), (320, 6312464), (512, 3945290), (640, 3156232), (1024, 1972645), (1280, 1578116), (2560, 789058), (5120, 394529)]