28651375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 38525760

約数和(自身を除く): 9874385

約数列:

[1, 5, 17, 25, 85, 97, 125, 139, 425, 485, 695, 1649, 2125, 2363, 2425, 3475, 8245, 11815, 12125, 13483, 17375, 41225, 59075, 67415, 206125, 229211, 295375, 337075, 1146055, 1685375, 5730275, 28651375]

約数ペア:

[(1, 28651375), (5, 5730275), (17, 1685375), (25, 1146055), (85, 337075), (97, 295375), (125, 229211), (139, 206125), (425, 67415), (485, 59075), (695, 41225), (1649, 17375), (2125, 13483), (2363, 12125), (2425, 11815), (3475, 8245)]