18404025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 32569344

約数和(自身を除く): 14165319

約数列:

[1, 3, 5, 15, 23, 25, 47, 69, 75, 115, 141, 227, 235, 345, 575, 681, 705, 1081, 1135, 1175, 1725, 3243, 3405, 3525, 5221, 5405, 5675, 10669, 15663, 16215, 17025, 26105, 27025, 32007, 53345, 78315, 81075, 130525, 160035, 245387, 266725, 391575, 736161, 800175, 1226935, 3680805, 6134675, 18404025]

約数ペア:

[(1, 18404025), (3, 6134675), (5, 3680805), (15, 1226935), (23, 800175), (25, 736161), (47, 391575), (69, 266725), (75, 245387), (115, 160035), (141, 130525), (227, 81075), (235, 78315), (345, 53345), (575, 32007), (681, 27025), (705, 26105), (1081, 17025), (1135, 16215), (1175, 15663), (1725, 10669), (3243, 5675), (3405, 5405), (3525, 5221)]