261457689

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1873}}^1$

素因数の和:2005

約数の個数: 32

約数和(自身を含む): 383795200

約数和(自身を除く): 122337511

約数列:

[1, 3, 19, 31, 57, 79, 93, 237, 589, 1501, 1767, 1873, 2449, 4503, 5619, 7347, 35587, 46531, 58063, 106761, 139593, 147967, 174189, 443901, 1103197, 2811373, 3309591, 4586977, 8434119, 13760931, 87152563, 261457689]

約数ペア:

[(1, 261457689), (3, 87152563), (19, 13760931), (31, 8434119), (57, 4586977), (79, 3309591), (93, 2811373), (237, 1103197), (589, 443901), (1501, 174189), (1767, 147967), (1873, 139593), (2449, 106761), (4503, 58063), (5619, 46531), (7347, 35587)]