81132075

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{21211}}^1$

素因数の和:21244

約数の個数: 36

約数和(自身を含む): 153871848

約数和(自身を除く): 72739773

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 21211, 63633, 106055, 190899, 318165, 360587, 530275, 954495, 1081761, 1590825, 1802935, 3245283, 4772475, 5408805, 9014675, 16226415, 27044025, 81132075]

約数ペア:

[(1, 81132075), (3, 27044025), (5, 16226415), (9, 9014675), (15, 5408805), (17, 4772475), (25, 3245283), (45, 1802935), (51, 1590825), (75, 1081761), (85, 954495), (153, 530275), (225, 360587), (255, 318165), (425, 190899), (765, 106055), (1275, 63633), (3825, 21211)]