25981905

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 17200815

約数列:

[1, 3, 5, 15, 41, 83, 123, 205, 249, 415, 509, 615, 1245, 1527, 2545, 3403, 7635, 10209, 17015, 20869, 42247, 51045, 62607, 104345, 126741, 211235, 313035, 633705, 1732127, 5196381, 8660635, 25981905]

約数ペア:

[(1, 25981905), (3, 8660635), (5, 5196381), (15, 1732127), (41, 633705), (83, 313035), (123, 211235), (205, 126741), (249, 104345), (415, 62607), (509, 51045), (615, 42247), (1245, 20869), (1527, 17015), (2545, 10209), (3403, 7635)]