31138245

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 26519355

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 79, 95, 171, 237, 285, 395, 461, 711, 855, 1185, 1383, 1501, 2305, 3555, 4149, 4503, 6915, 7505, 8759, 13509, 20745, 22515, 26277, 36419, 43795, 67545, 78831, 109257, 131385, 182095, 327771, 394155, 546285, 691961, 1638855, 2075883, 3459805, 6227649, 10379415, 31138245]

約数ペア:

[(1, 31138245), (3, 10379415), (5, 6227649), (9, 3459805), (15, 2075883), (19, 1638855), (45, 691961), (57, 546285), (79, 394155), (95, 327771), (171, 182095), (237, 131385), (285, 109257), (395, 78831), (461, 67545), (711, 43795), (855, 36419), (1185, 26277), (1383, 22515), (1501, 20745), (2305, 13509), (3555, 8759), (4149, 7505), (4503, 6915)]