42121575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 81244800

約数和(自身を除く): 39123225

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 59, 75, 95, 167, 171, 177, 225, 285, 295, 475, 501, 531, 835, 855, 885, 1121, 1425, 1475, 1503, 2505, 2655, 3173, 3363, 4175, 4275, 4425, 5605, 7515, 9519, 9853, 10089, 12525, 13275, 15865, 16815, 28025, 28557, 29559, 37575, 47595, 49265, 50445, 79325, 84075, 88677, 142785, 147795, 187207, 237975, 246325, 252225, 443385, 561621, 713925, 738975, 936035, 1684863, 2216925, 2808105, 4680175, 8424315, 14040525, 42121575]

約数ペア:

[(1, 42121575), (3, 14040525), (5, 8424315), (9, 4680175), (15, 2808105), (19, 2216925), (25, 1684863), (45, 936035), (57, 738975), (59, 713925), (75, 561621), (95, 443385), (167, 252225), (171, 246325), (177, 237975), (225, 187207), (285, 147795), (295, 142785), (475, 88677), (501, 84075), (531, 79325), (835, 50445), (855, 49265), (885, 47595), (1121, 37575), (1425, 29559), (1475, 28557), (1503, 28025), (2505, 16815), (2655, 15865), (3173, 13275), (3363, 12525), (4175, 10089), (4275, 9853), (4425, 9519), (5605, 7515)]