256460800

素因数分解:

$2^{11}\times 5^2\times {\mathrm{5009}}^1$

素因数の和:5041

約数の個数: 72

約数和(自身を含む): 635994450

約数和(自身を除く): 379533650

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, 2048, 2560, 3200, 5009, 5120, 6400, 10018, 10240, 12800, 20036, 25045, 25600, 40072, 50090, 51200, 80144, 100180, 125225, 160288, 200360, 250450, 320576, 400720, 500900, 641152, 801440, 1001800, 1282304, 1602880, 2003600, 2564608, 3205760, 4007200, 5129216, 6411520, 8014400, 10258432, 12823040, 16028800, 25646080, 32057600, 51292160, 64115200, 128230400, 256460800]

約数ペア:

[(1, 256460800), (2, 128230400), (4, 64115200), (5, 51292160), (8, 32057600), (10, 25646080), (16, 16028800), (20, 12823040), (25, 10258432), (32, 8014400), (40, 6411520), (50, 5129216), (64, 4007200), (80, 3205760), (100, 2564608), (128, 2003600), (160, 1602880), (200, 1282304), (256, 1001800), (320, 801440), (400, 641152), (512, 500900), (640, 400720), (800, 320576), (1024, 250450), (1280, 200360), (1600, 160288), (2048, 125225), (2560, 100180), (3200, 80144), (5009, 51200), (5120, 50090), (6400, 40072), (10018, 25600), (10240, 25045), (12800, 20036)]