287173880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1025621}}^1$

素因数の和:1025639

約数の個数: 32

約数和(自身を含む): 738447840

約数和(自身を除く): 451273960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1025621, 2051242, 4102484, 5128105, 7179347, 8204968, 10256210, 14358694, 20512420, 28717388, 35896735, 41024840, 57434776, 71793470, 143586940, 287173880]

約数ペア:

[(1, 287173880), (2, 143586940), (4, 71793470), (5, 57434776), (7, 41024840), (8, 35896735), (10, 28717388), (14, 20512420), (20, 14358694), (28, 10256210), (35, 8204968), (40, 7179347), (56, 5128105), (70, 4102484), (140, 2051242), (280, 1025621)]