28390725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{11471}}^1$

素因数の和:11498

約数の個数: 36

約数和(自身を含む): 55478592

約数和(自身を除く): 27087867

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 165, 225, 275, 495, 825, 2475, 11471, 34413, 57355, 103239, 126181, 172065, 286775, 378543, 516195, 630905, 860325, 1135629, 1892715, 2580975, 3154525, 5678145, 9463575, 28390725]

約数ペア:

[(1, 28390725), (3, 9463575), (5, 5678145), (9, 3154525), (11, 2580975), (15, 1892715), (25, 1135629), (33, 860325), (45, 630905), (55, 516195), (75, 378543), (99, 286775), (165, 172065), (225, 126181), (275, 103239), (495, 57355), (825, 34413), (2475, 11471)]