638580975

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3271}}^1$

素因数の和:3440

約数の個数: 48

約数和(自身を含む): 1119809280

約数和(自身を除く): 481228305

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 137, 285, 411, 475, 685, 1425, 2055, 2603, 3271, 3425, 7809, 9813, 10275, 13015, 16355, 39045, 49065, 62149, 65075, 81775, 186447, 195225, 245325, 310745, 448127, 932235, 1344381, 1553725, 2240635, 4661175, 6721905, 8514413, 11203175, 25543239, 33609525, 42572065, 127716195, 212860325, 638580975]

約数ペア:

[(1, 638580975), (3, 212860325), (5, 127716195), (15, 42572065), (19, 33609525), (25, 25543239), (57, 11203175), (75, 8514413), (95, 6721905), (137, 4661175), (285, 2240635), (411, 1553725), (475, 1344381), (685, 932235), (1425, 448127), (2055, 310745), (2603, 245325), (3271, 195225), (3425, 186447), (7809, 81775), (9813, 65075), (10275, 62149), (13015, 49065), (16355, 39045)]