28018450

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 54137160

約数和(自身を除く): 26118710

約数列:

[1, 2, 5, 10, 25, 50, 53, 97, 106, 109, 194, 218, 265, 485, 530, 545, 970, 1090, 1325, 2425, 2650, 2725, 4850, 5141, 5450, 5777, 10282, 10573, 11554, 21146, 25705, 28885, 51410, 52865, 57770, 105730, 128525, 144425, 257050, 264325, 288850, 528650, 560369, 1120738, 2801845, 5603690, 14009225, 28018450]

約数ペア:

[(1, 28018450), (2, 14009225), (5, 5603690), (10, 2801845), (25, 1120738), (50, 560369), (53, 528650), (97, 288850), (106, 264325), (109, 257050), (194, 144425), (218, 128525), (265, 105730), (485, 57770), (530, 52865), (545, 51410), (970, 28885), (1090, 25705), (1325, 21146), (2425, 11554), (2650, 10573), (2725, 10282), (4850, 5777), (5141, 5450)]