28370990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 55961280

約数和(自身を除く): 27590290

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 271, 290, 361, 542, 551, 722, 1102, 1355, 1805, 2710, 2755, 3610, 5149, 5510, 7859, 10298, 10469, 15718, 20938, 25745, 39295, 51490, 52345, 78590, 97831, 104690, 149321, 195662, 298642, 489155, 746605, 978310, 1493210, 2837099, 5674198, 14185495, 28370990]

約数ペア:

[(1, 28370990), (2, 14185495), (5, 5674198), (10, 2837099), (19, 1493210), (29, 978310), (38, 746605), (58, 489155), (95, 298642), (145, 195662), (190, 149321), (271, 104690), (290, 97831), (361, 78590), (542, 52345), (551, 51490), (722, 39295), (1102, 25745), (1355, 20938), (1805, 15718), (2710, 10469), (2755, 10298), (3610, 7859), (5149, 5510)]