18457880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65921}}^1$

素因数の和:65939

約数の個数: 32

約数和(自身を含む): 47463840

約数和(自身を除く): 29005960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65921, 131842, 263684, 329605, 461447, 527368, 659210, 922894, 1318420, 1845788, 2307235, 2636840, 3691576, 4614470, 9228940, 18457880]

約数ペア:

[(1, 18457880), (2, 9228940), (4, 4614470), (5, 3691576), (7, 2636840), (8, 2307235), (10, 1845788), (14, 1318420), (20, 922894), (28, 659210), (35, 527368), (40, 461447), (56, 329605), (70, 263684), (140, 131842), (280, 65921)]