2013286400

素因数分解:

$2^{12}\times 5^2\times {\mathrm{19661}}^1$

素因数の和:19695

約数の個数: 78

約数和(自身を含む): 4992594702

約数和(自身を除く): 2979308302

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, 4096, 5120, 6400, 10240, 12800, 19661, 20480, 25600, 39322, 51200, 78644, 98305, 102400, 157288, 196610, 314576, 393220, 491525, 629152, 786440, 983050, 1258304, 1572880, 1966100, 2516608, 3145760, 3932200, 5033216, 6291520, 7864400, 10066432, 12583040, 15728800, 20132864, 25166080, 31457600, 40265728, 50332160, 62915200, 80531456, 100664320, 125830400, 201328640, 251660800, 402657280, 503321600, 1006643200, 2013286400]

約数ペア:

[(1, 2013286400), (2, 1006643200), (4, 503321600), (5, 402657280), (8, 251660800), (10, 201328640), (16, 125830400), (20, 100664320), (25, 80531456), (32, 62915200), (40, 50332160), (50, 40265728), (64, 31457600), (80, 25166080), (100, 20132864), (128, 15728800), (160, 12583040), (200, 10066432), (256, 7864400), (320, 6291520), (400, 5033216), (512, 3932200), (640, 3145760), (800, 2516608), (1024, 1966100), (1280, 1572880), (1600, 1258304), (2048, 983050), (2560, 786440), (3200, 629152), (4096, 491525), (5120, 393220), (6400, 314576), (10240, 196610), (12800, 157288), (19661, 102400), (20480, 98305), (25600, 78644), (39322, 51200)]