28968255

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1993}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 55991520

約数和(自身を除く): 27023265

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1615, 1993, 2907, 4845, 5979, 9965, 14535, 17937, 29895, 33881, 37867, 89685, 101643, 113601, 169405, 189335, 304929, 340803, 508215, 568005, 643739, 1524645, 1704015, 1931217, 3218695, 5793651, 9656085, 28968255]

約数ペア:

[(1, 28968255), (3, 9656085), (5, 5793651), (9, 3218695), (15, 1931217), (17, 1704015), (19, 1524645), (45, 643739), (51, 568005), (57, 508215), (85, 340803), (95, 304929), (153, 189335), (171, 169405), (255, 113601), (285, 101643), (323, 89685), (765, 37867), (855, 33881), (969, 29895), (1615, 17937), (1993, 14535), (2907, 9965), (4845, 5979)]