81385075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5527}}^1$

素因数の和:5587

約数の個数: 24

約数和(自身を含む): 109675520

約数和(自身を除く): 28290445

約数列:

[1, 5, 19, 25, 31, 95, 155, 475, 589, 775, 2945, 5527, 14725, 27635, 105013, 138175, 171337, 525065, 856685, 2625325, 3255403, 4283425, 16277015, 81385075]

約数ペア:

[(1, 81385075), (5, 16277015), (19, 4283425), (25, 3255403), (31, 2625325), (95, 856685), (155, 525065), (475, 171337), (589, 138175), (775, 105013), (2945, 27635), (5527, 14725)]