391796140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{3391}}^1$

素因数の和:3562

約数の個数: 48

約数和(自身を含む): 846236160

約数和(自身を除く): 454440020

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 109, 212, 218, 265, 436, 530, 545, 1060, 1090, 2180, 3391, 5777, 6782, 11554, 13564, 16955, 23108, 28885, 33910, 57770, 67820, 115540, 179723, 359446, 369619, 718892, 739238, 898615, 1478476, 1797230, 1848095, 3594460, 3696190, 7392380, 19589807, 39179614, 78359228, 97949035, 195898070, 391796140]

約数ペア:

[(1, 391796140), (2, 195898070), (4, 97949035), (5, 78359228), (10, 39179614), (20, 19589807), (53, 7392380), (106, 3696190), (109, 3594460), (212, 1848095), (218, 1797230), (265, 1478476), (436, 898615), (530, 739238), (545, 718892), (1060, 369619), (1090, 359446), (2180, 179723), (3391, 115540), (5777, 67820), (6782, 57770), (11554, 33910), (13564, 28885), (16955, 23108)]