81407625

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{16699}}^1$

素因数の和:16730

約数の個数: 32

約数和(自身を含む): 145891200

約数和(自身を除く): 64483575

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 4875, 16699, 50097, 83495, 217087, 250485, 417475, 651261, 1085435, 1252425, 2087375, 3256305, 5427175, 6262125, 16281525, 27135875, 81407625]

約数ペア:

[(1, 81407625), (3, 27135875), (5, 16281525), (13, 6262125), (15, 5427175), (25, 3256305), (39, 2087375), (65, 1252425), (75, 1085435), (125, 651261), (195, 417475), (325, 250485), (375, 217087), (975, 83495), (1625, 50097), (4875, 16699)]