2019964000

素因数分解:

$2^5\times 5^3\times {\mathrm{504991}}^1$

素因数の和:505016

約数の個数: 48

約数和(自身を含む): 4963061376

約数和(自身を除く): 2943097376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 504991, 1009982, 2019964, 2524955, 4039928, 5049910, 8079856, 10099820, 12624775, 16159712, 20199640, 25249550, 40399280, 50499100, 63123875, 80798560, 100998200, 126247750, 201996400, 252495500, 403992800, 504991000, 1009982000, 2019964000]

約数ペア:

[(1, 2019964000), (2, 1009982000), (4, 504991000), (5, 403992800), (8, 252495500), (10, 201996400), (16, 126247750), (20, 100998200), (25, 80798560), (32, 63123875), (40, 50499100), (50, 40399280), (80, 25249550), (100, 20199640), (125, 16159712), (160, 12624775), (200, 10099820), (250, 8079856), (400, 5049910), (500, 4039928), (800, 2524955), (1000, 2019964), (2000, 1009982), (4000, 504991)]