80276480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{15679}}^1$

素因数の和:15704

約数の個数: 44

約数和(自身を含む): 192581760

約数和(自身を除く): 112305280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 15679, 31358, 62716, 78395, 125432, 156790, 250864, 313580, 501728, 627160, 1003456, 1254320, 2006912, 2508640, 4013824, 5017280, 8027648, 10034560, 16055296, 20069120, 40138240, 80276480]

約数ペア:

[(1, 80276480), (2, 40138240), (4, 20069120), (5, 16055296), (8, 10034560), (10, 8027648), (16, 5017280), (20, 4013824), (32, 2508640), (40, 2006912), (64, 1254320), (80, 1003456), (128, 627160), (160, 501728), (256, 313580), (320, 250864), (512, 156790), (640, 125432), (1024, 78395), (1280, 62716), (2560, 31358), (5120, 15679)]