28790235

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1061}}^1$

素因数の和:1145

約数の個数: 40

約数和(自身を含む): 52428816

約数和(自身を除く): 23638581

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 1005, 1061, 1809, 3015, 3183, 5305, 5427, 9045, 9549, 15915, 27135, 28647, 47745, 71087, 85941, 143235, 213261, 355435, 429705, 639783, 1066305, 1919349, 3198915, 5758047, 9596745, 28790235]

約数ペア:

[(1, 28790235), (3, 9596745), (5, 5758047), (9, 3198915), (15, 1919349), (27, 1066305), (45, 639783), (67, 429705), (81, 355435), (135, 213261), (201, 143235), (335, 85941), (405, 71087), (603, 47745), (1005, 28647), (1061, 27135), (1809, 15915), (3015, 9549), (3183, 9045), (5305, 5427)]