389612405

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{23143}}^1$

素因数の和:23205

約数の個数: 32

約数和(自身を含む): 591005184

約数和(自身を除く): 201392779

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 2405, 3367, 16835, 23143, 115715, 162001, 300859, 810005, 856291, 1504295, 2106013, 4281455, 5994037, 10530065, 11131783, 29970185, 55658915, 77922481, 389612405]

約数ペア:

[(1, 389612405), (5, 77922481), (7, 55658915), (13, 29970185), (35, 11131783), (37, 10530065), (65, 5994037), (91, 4281455), (185, 2106013), (259, 1504295), (455, 856291), (481, 810005), (1295, 300859), (2405, 162001), (3367, 115715), (16835, 23143)]