31215825

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{8161}}^1$

素因数の和:8194

約数の個数: 36

約数和(自身を含む): 59207148

約数和(自身を除く): 27991323

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 8161, 24483, 40805, 73449, 122415, 138737, 204025, 367245, 416211, 612075, 693685, 1248633, 1836225, 2081055, 3468425, 6243165, 10405275, 31215825]

約数ペア:

[(1, 31215825), (3, 10405275), (5, 6243165), (9, 3468425), (15, 2081055), (17, 1836225), (25, 1248633), (45, 693685), (51, 612075), (75, 416211), (85, 367245), (153, 204025), (225, 138737), (255, 122415), (425, 73449), (765, 40805), (1275, 24483), (3825, 8161)]