261567015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53987}}^1$

素因数の和:54031

約数の個数: 32

約数和(自身を含む): 466456320

約数和(自身を除く): 204889305

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4845, 53987, 161961, 269935, 809805, 917779, 1025753, 2753337, 3077259, 4588895, 5128765, 13766685, 15386295, 17437801, 52313403, 87189005, 261567015]

約数ペア:

[(1, 261567015), (3, 87189005), (5, 52313403), (15, 17437801), (17, 15386295), (19, 13766685), (51, 5128765), (57, 4588895), (85, 3077259), (95, 2753337), (255, 1025753), (285, 917779), (323, 809805), (969, 269935), (1615, 161961), (4845, 53987)]