15657880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{55921}}^1$

素因数の和:55939

約数の個数: 32

約数和(自身を含む): 40263840

約数和(自身を除く): 24605960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 55921, 111842, 223684, 279605, 391447, 447368, 559210, 782894, 1118420, 1565788, 1957235, 2236840, 3131576, 3914470, 7828940, 15657880]

約数ペア:

[(1, 15657880), (2, 7828940), (4, 3914470), (5, 3131576), (7, 2236840), (8, 1957235), (10, 1565788), (14, 1118420), (20, 782894), (28, 559210), (35, 447368), (40, 391447), (56, 279605), (70, 223684), (140, 111842), (280, 55921)]