13857280

素因数分解:

$2^9\times 5^1\times {\mathrm{5413}}^1$

素因数の和:5436

約数の個数: 40

約数和(自身を含む): 33231132

約数和(自身を除く): 19373852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 5413, 10826, 21652, 27065, 43304, 54130, 86608, 108260, 173216, 216520, 346432, 433040, 692864, 866080, 1385728, 1732160, 2771456, 3464320, 6928640, 13857280]

約数ペア:

[(1, 13857280), (2, 6928640), (4, 3464320), (5, 2771456), (8, 1732160), (10, 1385728), (16, 866080), (20, 692864), (32, 433040), (40, 346432), (64, 216520), (80, 173216), (128, 108260), (160, 86608), (256, 54130), (320, 43304), (512, 27065), (640, 21652), (1280, 10826), (2560, 5413)]