208528640

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1613}}^1$

素因数の和:1735

約数の個数: 72

約数和(自身を含む): 504749448

約数和(自身を除く): 296220808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 404, 505, 640, 808, 1010, 1280, 1613, 1616, 2020, 3226, 3232, 4040, 6452, 6464, 8065, 8080, 12904, 12928, 16130, 16160, 25808, 25856, 32260, 32320, 51616, 64520, 64640, 103232, 129040, 129280, 162913, 206464, 258080, 325826, 412928, 516160, 651652, 814565, 1032320, 1303304, 1629130, 2064640, 2606608, 3258260, 5213216, 6516520, 10426432, 13033040, 20852864, 26066080, 41705728, 52132160, 104264320, 208528640]

約数ペア:

[(1, 208528640), (2, 104264320), (4, 52132160), (5, 41705728), (8, 26066080), (10, 20852864), (16, 13033040), (20, 10426432), (32, 6516520), (40, 5213216), (64, 3258260), (80, 2606608), (101, 2064640), (128, 1629130), (160, 1303304), (202, 1032320), (256, 814565), (320, 651652), (404, 516160), (505, 412928), (640, 325826), (808, 258080), (1010, 206464), (1280, 162913), (1613, 129280), (1616, 129040), (2020, 103232), (3226, 64640), (3232, 64520), (4040, 51616), (6452, 32320), (6464, 32260), (8065, 25856), (8080, 25808), (12904, 16160), (12928, 16130)]