28720935

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10463}}^1$

素因数の和:10535

約数の個数: 24

約数和(自身を含む): 50603904

約数和(自身を除く): 21882969

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 10463, 31389, 52315, 94167, 156945, 470835, 638243, 1914729, 3191215, 5744187, 9573645, 28720935]

約数ペア:

[(1, 28720935), (3, 9573645), (5, 5744187), (9, 3191215), (15, 1914729), (45, 638243), (61, 470835), (183, 156945), (305, 94167), (549, 52315), (915, 31389), (2745, 10463)]