28761705

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:207

約数の個数: 96

約数和(自身を含む): 62270208

約数和(自身を除く): 33508503

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 41, 45, 51, 63, 85, 105, 119, 123, 131, 153, 205, 255, 287, 315, 357, 369, 393, 595, 615, 655, 697, 765, 861, 917, 1071, 1179, 1435, 1785, 1845, 1965, 2091, 2227, 2583, 2751, 3485, 4305, 4585, 4879, 5355, 5371, 5895, 6273, 6681, 8253, 10455, 11135, 12915, 13755, 14637, 15589, 16113, 20043, 24395, 26855, 31365, 33405, 37597, 41265, 43911, 46767, 48339, 73185, 77945, 80565, 91307, 100215, 112791, 140301, 187985, 219555, 233835, 241695, 273921, 338373, 456535, 563955, 639149, 701505, 821763, 1369605, 1691865, 1917447, 3195745, 4108815, 5752341, 9587235, 28761705]

約数ペア:

[(1, 28761705), (3, 9587235), (5, 5752341), (7, 4108815), (9, 3195745), (15, 1917447), (17, 1691865), (21, 1369605), (35, 821763), (41, 701505), (45, 639149), (51, 563955), (63, 456535), (85, 338373), (105, 273921), (119, 241695), (123, 233835), (131, 219555), (153, 187985), (205, 140301), (255, 112791), (287, 100215), (315, 91307), (357, 80565), (369, 77945), (393, 73185), (595, 48339), (615, 46767), (655, 43911), (697, 41265), (765, 37597), (861, 33405), (917, 31365), (1071, 26855), (1179, 24395), (1435, 20043), (1785, 16113), (1845, 15589), (1965, 14637), (2091, 13755), (2227, 12915), (2583, 11135), (2751, 10455), (3485, 8253), (4305, 6681), (4585, 6273), (4879, 5895), (5355, 5371)]