81642100

素因数分解:

$2^2\times 5^2\times {\mathrm{727}}^1\times {\mathrm{1123}}^1$

素因数の和:1864

約数の個数: 36

約数和(自身を含む): 177565024

約数和(自身を除く): 95922924

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 727, 1123, 1454, 2246, 2908, 3635, 4492, 5615, 7270, 11230, 14540, 18175, 22460, 28075, 36350, 56150, 72700, 112300, 816421, 1632842, 3265684, 4082105, 8164210, 16328420, 20410525, 40821050, 81642100]

約数ペア:

[(1, 81642100), (2, 40821050), (4, 20410525), (5, 16328420), (10, 8164210), (20, 4082105), (25, 3265684), (50, 1632842), (100, 816421), (727, 112300), (1123, 72700), (1454, 56150), (2246, 36350), (2908, 28075), (3635, 22460), (4492, 18175), (5615, 14540), (7270, 11230)]