278778885

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 600530112

約数和(自身を除く): 321751227

約数列:

[1, 3, 5, 7, 11, 15, 21, 29, 33, 35, 41, 49, 55, 77, 87, 105, 123, 145, 147, 165, 203, 205, 231, 245, 287, 319, 385, 435, 451, 539, 609, 615, 735, 841, 861, 957, 1015, 1155, 1189, 1353, 1421, 1435, 1595, 1617, 2009, 2233, 2255, 2523, 2695, 3045, 3157, 3567, 4205, 4263, 4305, 4785, 5887, 5945, 6027, 6699, 6765, 7105, 8085, 8323, 9251, 9471, 10045, 11165, 12615, 13079, 15631, 15785, 17661, 17835, 21315, 22099, 24969, 27753, 29435, 30135, 33495, 34481, 39237, 41209, 41615, 46255, 46893, 47355, 58261, 64757, 65395, 66297, 78155, 88305, 91553, 103443, 110495, 123627, 124845, 138765, 172405, 174783, 194271, 196185, 206045, 234465, 241367, 274659, 291305, 323785, 331485, 379291, 453299, 457765, 517215, 618135, 640871, 724101, 873915, 971355, 1137873, 1206835, 1359897, 1373295, 1689569, 1896455, 1922613, 2266495, 2655037, 3204355, 3620505, 5068707, 5689365, 6799485, 7965111, 8447845, 9613065, 13275185, 18585259, 25343535, 39825555, 55755777, 92926295, 278778885]

約数ペア:

[(1, 278778885), (3, 92926295), (5, 55755777), (7, 39825555), (11, 25343535), (15, 18585259), (21, 13275185), (29, 9613065), (33, 8447845), (35, 7965111), (41, 6799485), (49, 5689365), (55, 5068707), (77, 3620505), (87, 3204355), (105, 2655037), (123, 2266495), (145, 1922613), (147, 1896455), (165, 1689569), (203, 1373295), (205, 1359897), (231, 1206835), (245, 1137873), (287, 971355), (319, 873915), (385, 724101), (435, 640871), (451, 618135), (539, 517215), (609, 457765), (615, 453299), (735, 379291), (841, 331485), (861, 323785), (957, 291305), (1015, 274659), (1155, 241367), (1189, 234465), (1353, 206045), (1421, 196185), (1435, 194271), (1595, 174783), (1617, 172405), (2009, 138765), (2233, 124845), (2255, 123627), (2523, 110495), (2695, 103443), (3045, 91553), (3157, 88305), (3567, 78155), (4205, 66297), (4263, 65395), (4305, 64757), (4785, 58261), (5887, 47355), (5945, 46893), (6027, 46255), (6699, 41615), (6765, 41209), (7105, 39237), (8085, 34481), (8323, 33495), (9251, 30135), (9471, 29435), (10045, 27753), (11165, 24969), (12615, 22099), (13079, 21315), (15631, 17835), (15785, 17661)]