81512375

素因数分解:

$5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4903}}^1$

素因数の和:4944

約数の個数: 32

約数和(自身を含む): 122403840

約数和(自身を除く): 40891465

約数列:

[1, 5, 7, 19, 25, 35, 95, 125, 133, 175, 475, 665, 875, 2375, 3325, 4903, 16625, 24515, 34321, 93157, 122575, 171605, 465785, 612875, 652099, 858025, 2328925, 3260495, 4290125, 11644625, 16302475, 81512375]

約数ペア:

[(1, 81512375), (5, 16302475), (7, 11644625), (19, 4290125), (25, 3260495), (35, 2328925), (95, 858025), (125, 652099), (133, 612875), (175, 465785), (475, 171605), (665, 122575), (875, 93157), (2375, 34321), (3325, 24515), (4903, 16625)]