28551585

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 23703135

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 71, 83, 85, 95, 213, 249, 255, 285, 323, 355, 415, 969, 1065, 1207, 1245, 1349, 1411, 1577, 1615, 3621, 4047, 4233, 4731, 4845, 5893, 6035, 6745, 7055, 7885, 17679, 18105, 20235, 21165, 22933, 23655, 26809, 29465, 68799, 80427, 88395, 100181, 111967, 114665, 134045, 300543, 335901, 343995, 402135, 500905, 559835, 1502715, 1679505, 1903439, 5710317, 9517195, 28551585]

約数ペア:

[(1, 28551585), (3, 9517195), (5, 5710317), (15, 1903439), (17, 1679505), (19, 1502715), (51, 559835), (57, 500905), (71, 402135), (83, 343995), (85, 335901), (95, 300543), (213, 134045), (249, 114665), (255, 111967), (285, 100181), (323, 88395), (355, 80427), (415, 68799), (969, 29465), (1065, 26809), (1207, 23655), (1245, 22933), (1349, 21165), (1411, 20235), (1577, 18105), (1615, 17679), (3621, 7885), (4047, 7055), (4233, 6745), (4731, 6035), (4845, 5893)]