2020889600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{78941}}^1$

素因数の和:78971

約数の個数: 66

約数和(自身を含む): 5009422494

約数和(自身を除く): 2988532894

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1600, 2560, 3200, 5120, 6400, 12800, 25600, 78941, 157882, 315764, 394705, 631528, 789410, 1263056, 1578820, 1973525, 2526112, 3157640, 3947050, 5052224, 6315280, 7894100, 10104448, 12630560, 15788200, 20208896, 25261120, 31576400, 40417792, 50522240, 63152800, 80835584, 101044480, 126305600, 202088960, 252611200, 404177920, 505222400, 1010444800, 2020889600]

約数ペア:

[(1, 2020889600), (2, 1010444800), (4, 505222400), (5, 404177920), (8, 252611200), (10, 202088960), (16, 126305600), (20, 101044480), (25, 80835584), (32, 63152800), (40, 50522240), (50, 40417792), (64, 31576400), (80, 25261120), (100, 20208896), (128, 15788200), (160, 12630560), (200, 10104448), (256, 7894100), (320, 6315280), (400, 5052224), (512, 3947050), (640, 3157640), (800, 2526112), (1024, 1973525), (1280, 1578820), (1600, 1263056), (2560, 789410), (3200, 631528), (5120, 394705), (6400, 315764), (12800, 157882), (25600, 78941)]