291257265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:394

約数の個数: 64

約数和(自身を含む): 516257280

約数和(自身を除く): 225000015

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 109, 193, 195, 213, 327, 355, 545, 579, 923, 965, 1065, 1417, 1635, 2509, 2769, 2895, 4251, 4615, 7085, 7527, 7739, 12545, 13703, 13845, 21037, 21255, 23217, 37635, 38695, 41109, 63111, 68515, 100607, 105185, 116085, 178139, 205545, 273481, 301821, 315555, 503035, 534417, 820443, 890695, 1367405, 1493627, 1509105, 2672085, 4102215, 4480881, 7468135, 19417151, 22404405, 58251453, 97085755, 291257265]

約数ペア:

[(1, 291257265), (3, 97085755), (5, 58251453), (13, 22404405), (15, 19417151), (39, 7468135), (65, 4480881), (71, 4102215), (109, 2672085), (193, 1509105), (195, 1493627), (213, 1367405), (327, 890695), (355, 820443), (545, 534417), (579, 503035), (923, 315555), (965, 301821), (1065, 273481), (1417, 205545), (1635, 178139), (2509, 116085), (2769, 105185), (2895, 100607), (4251, 68515), (4615, 63111), (7085, 41109), (7527, 38695), (7739, 37635), (12545, 23217), (13703, 21255), (13845, 21037)]