28277985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{317}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 47928960

約数和(自身を除く): 19650975

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 313, 317, 939, 951, 1565, 1585, 4695, 4755, 5947, 6023, 17841, 18069, 29735, 30115, 89205, 90345, 99221, 297663, 496105, 1488315, 1885199, 5655597, 9425995, 28277985]

約数ペア:

[(1, 28277985), (3, 9425995), (5, 5655597), (15, 1885199), (19, 1488315), (57, 496105), (95, 297663), (285, 99221), (313, 90345), (317, 89205), (939, 30115), (951, 29735), (1565, 18069), (1585, 17841), (4695, 6023), (4755, 5947)]