204517880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{730421}}^1$

素因数の和:730439

約数の個数: 32

約数和(自身を含む): 525903840

約数和(自身を除く): 321385960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 730421, 1460842, 2921684, 3652105, 5112947, 5843368, 7304210, 10225894, 14608420, 20451788, 25564735, 29216840, 40903576, 51129470, 102258940, 204517880]

約数ペア:

[(1, 204517880), (2, 102258940), (4, 51129470), (5, 40903576), (7, 29216840), (8, 25564735), (10, 20451788), (14, 14608420), (20, 10225894), (28, 7304210), (35, 5843368), (40, 5112947), (56, 3652105), (70, 2921684), (140, 1460842), (280, 730421)]