81091275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{63601}}^1$

素因数の和:63631

約数の個数: 24

約数和(自身を含む): 141959664

約数和(自身を除く): 60868389

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 63601, 190803, 318005, 954015, 1081217, 1590025, 3243651, 4770075, 5406085, 16218255, 27030425, 81091275]

約数ペア:

[(1, 81091275), (3, 27030425), (5, 16218255), (15, 5406085), (17, 4770075), (25, 3243651), (51, 1590025), (75, 1081217), (85, 954015), (255, 318005), (425, 190803), (1275, 63601)]