138657280

素因数分解:

$2^9\times 5^1\times {\mathrm{54163}}^1$

素因数の和:54186

約数の個数: 40

約数和(自身を含む): 332458632

約数和(自身を除く): 193801352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 54163, 108326, 216652, 270815, 433304, 541630, 866608, 1083260, 1733216, 2166520, 3466432, 4333040, 6932864, 8666080, 13865728, 17332160, 27731456, 34664320, 69328640, 138657280]

約数ペア:

[(1, 138657280), (2, 69328640), (4, 34664320), (5, 27731456), (8, 17332160), (10, 13865728), (16, 8666080), (20, 6932864), (32, 4333040), (40, 3466432), (64, 2166520), (80, 1733216), (128, 1083260), (160, 866608), (256, 541630), (320, 433304), (512, 270815), (640, 216652), (1280, 108326), (2560, 54163)]