28185705

素因数分解:

$3^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{743}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 50353920

約数和(自身を除く): 22168215

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 281, 743, 843, 1405, 2229, 2529, 3715, 4215, 6687, 7587, 11145, 12645, 20061, 33435, 37935, 100305, 208783, 626349, 1043915, 1879047, 3131745, 5637141, 9395235, 28185705]

約数ペア:

[(1, 28185705), (3, 9395235), (5, 5637141), (9, 3131745), (15, 1879047), (27, 1043915), (45, 626349), (135, 208783), (281, 100305), (743, 37935), (843, 33435), (1405, 20061), (2229, 12645), (2529, 11145), (3715, 7587), (4215, 6687)]