55417880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197921}}^1$

素因数の和:197939

約数の個数: 32

約数和(自身を含む): 142503840

約数和(自身を除く): 87085960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 197921, 395842, 791684, 989605, 1385447, 1583368, 1979210, 2770894, 3958420, 5541788, 6927235, 7916840, 11083576, 13854470, 27708940, 55417880]

約数ペア:

[(1, 55417880), (2, 27708940), (4, 13854470), (5, 11083576), (7, 7916840), (8, 6927235), (10, 5541788), (14, 3958420), (20, 2770894), (28, 1979210), (35, 1583368), (40, 1385447), (56, 989605), (70, 791684), (140, 395842), (280, 197921)]