31028145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 52876800

約数和(自身を除く): 21848655

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 271, 449, 813, 1347, 1355, 2245, 4065, 4607, 6735, 7633, 13821, 22899, 23035, 38165, 69105, 114495, 121679, 365037, 608395, 1825185, 2068543, 6205629, 10342715, 31028145]

約数ペア:

[(1, 31028145), (3, 10342715), (5, 6205629), (15, 2068543), (17, 1825185), (51, 608395), (85, 365037), (255, 121679), (271, 114495), (449, 69105), (813, 38165), (1347, 23035), (1355, 22899), (2245, 13821), (4065, 7633), (4607, 6735)]