87891520

素因数分解:

$2^6\times 5^1\times {\mathrm{274661}}^1$

素因数の和:274678

約数の個数: 28

約数和(自身を含む): 209292444

約数和(自身を除く): 121400924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 274661, 549322, 1098644, 1373305, 2197288, 2746610, 4394576, 5493220, 8789152, 10986440, 17578304, 21972880, 43945760, 87891520]

約数ペア:

[(1, 87891520), (2, 43945760), (4, 21972880), (5, 17578304), (8, 10986440), (10, 8789152), (16, 5493220), (20, 4394576), (32, 2746610), (40, 2197288), (64, 1373305), (80, 1098644), (160, 549322), (320, 274661)]